Countries as per government forms

NameConstitutional formHead of state
Basis of executive legitimacy
AfghanistanRepublicExecutive
Presidency is independent of legislature
AlbaniaRepublicCeremonial
Ministry is subject to parliamentary confidence
AlgeriaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
AndorraConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
AngolaRepublicExecutive
Presidency is independent of legislature
Antigua and BarbudaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
ArgentinaRepublicExecutive
Presidency is independent of legislature
ArmeniaRepublicCeremonial
Ministry is subject to parliamentary confidence
AustraliaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
AustriaRepublicCeremonial
Ministry is subject to parliamentary confidence
AzerbaijanRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
Bahamas, TheConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
BahrainConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
BangladeshRepublicCeremonial
Ministry is subject to parliamentary confidence
BarbadosConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
BelarusRepublicExecutive
Presidency is independent of legislature
BelgiumConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
BelizeConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
BeninRepublicExecutive
Presidency is independent of legislature
BhutanConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
BoliviaRepublicExecutive
Presidency is independent of legislature
Bosnia and HerzegovinaRepublicCeremonial
Ministry is subject to parliamentary confidence
BotswanaRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
BrazilRepublicExecutive
Presidency is independent of legislature
BruneiAbsolute monarchyExecutive
All authority vested in absolute monarch
BulgariaRepublicCeremonial
Ministry is subject to parliamentary confidence
Burkina FasoRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
BurundiRepublicExecutive
Presidency is independent of legislature
CambodiaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
CameroonRepublicExecutive
Presidency is independent of legislature
CanadaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
Cape VerdeRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
Central African RepublicRepublicExecutive
Presidency is independent of legislature
ChadRepublicExecutive
Presidency is independent of legislature
ChileRepublicExecutive
Presidency is independent of legislature
China, People’s Republic ofRepublicCeremonial
Power constitutionally linked to a single political movement[note 1]
ColombiaRepublicExecutive
Presidency is independent of legislature
ComorosRepublicExecutive
Presidency is independent of legislature
Congo, Democratic Republic of theRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
Congo, Republic of theRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
Costa RicaRepublicExecutive
Presidency is independent of legislature
Côte d’IvoireRepublicExecutive
Presidency is independent of legislature
CroatiaRepublicCeremonial
Ministry is subject to parliamentary confidence
CubaRepublicExecutive
Power constitutionally linked to a single political movement
CyprusRepublicExecutive
Presidency is independent of legislature
Czech RepublicRepublicCeremonial
Ministry is subject to parliamentary confidence
DenmarkConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
DjiboutiRepublicExecutive
Presidency is independent of legislature
DominicaRepublicCeremonial
Ministry is subject to parliamentary confidence
Dominican RepublicRepublicExecutive
Presidency is independent of legislature
East TimorRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
EcuadorRepublicExecutive
Presidency is independent of legislature
EgyptRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
El SalvadorRepublicExecutive
Presidency is independent of legislature
Equatorial GuineaRepublicExecutive
Presidency is independent of legislature
EritreaRepublicExecutive
Power constitutionally linked to a single political movement
EstoniaRepublicCeremonial
Ministry is subject to parliamentary confidence
EswatiniAbsolute monarchyExecutive
All authority vested in absolute monarch
EthiopiaRepublicCeremonial
Ministry is subject to parliamentary confidence
Federated States of MicronesiaRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
FijiRepublicCeremonial
Ministry is subject to parliamentary confidence
FinlandRepublicCeremonial
Ministry is subject to parliamentary confidence
FranceRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
GabonRepublicExecutive
Presidency is independent of legislature
Gambia, TheRepublicExecutive
Presidency is independent of legislature
GeorgiaRepublicCeremonial
Ministry is subject to parliamentary confidence
GermanyRepublicCeremonial
Ministry is subject to parliamentary confidence
GhanaRepublicExecutive
Presidency is independent of legislature
GreeceRepublicCeremonial
Ministry is subject to parliamentary confidence
GrenadaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
GuatemalaRepublicExecutive
Presidency is independent of legislature
GuineaRepublicExecutive
Presidency is independent of legislature
Guinea-BissauRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
GuyanaRepublicExecutive
Presidency is independent of legislature
HaitiRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
HondurasRepublicExecutive
Presidency is independent of legislature
HungaryRepublicCeremonial
Ministry is subject to parliamentary confidence
IcelandRepublicCeremonial
Ministry is subject to parliamentary confidence
IndiaRepublicCeremonial
Ministry is subject to parliamentary confidence
IndonesiaRepublicExecutive
Presidency is independent of legislature
IranRepublicExecutive
Presidency is independent of legislature
IraqRepublicCeremonial
Ministry is subject to parliamentary confidence
IrelandRepublicCeremonial
Ministry is subject to parliamentary confidence
IsraelRepublicCeremonial
Ministry is subject to parliamentary confidence
ItalyRepublicCeremonial
Ministry is subject to parliamentary confidence
JamaicaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
JapanConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
JordanConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
KazakhstanRepublicExecutive
Presidency is independent of legislature
KenyaRepublicExecutive
Presidency is independent of legislature
KiribatiRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
Korea, NorthRepublicExecutive
Power constitutionally linked to a single political movement
Korea, SouthRepublicExecutive
Presidency is independent of legislature
KuwaitConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
KyrgyzstanRepublicCeremonial
Ministry is subject to parliamentary confidence
LaosRepublicExecutive
Power constitutionally linked to a single political movement
LatviaRepublicCeremonial
Ministry is subject to parliamentary confidence
LebanonRepublicCeremonial
Ministry is subject to parliamentary confidence
LesothoConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
LiberiaRepublicExecutive
Presidency is independent of legislature
LibyaProvisionaln/a
No constitutionally-defined basis to current regime
LiechtensteinConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
LithuaniaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
LuxembourgConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
MadagascarRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
MalawiRepublicExecutive
Presidency is independent of legislature
MalaysiaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
MaldivesRepublicExecutive
Presidency is independent of legislature
MaliProvisionaln/a
No constitutionally-defined basis to current regime
MaltaRepublicCeremonial
Ministry is subject to parliamentary confidence
Marshall IslandsRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
MauritaniaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
MauritiusRepublicCeremonial
Ministry is subject to parliamentary confidence
MexicoRepublicExecutive
Presidency is independent of legislature
MoldovaRepublicCeremonial
Ministry is subject to parliamentary confidence
MonacoConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
MongoliaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
MontenegroRepublicCeremonial
Ministry is subject to parliamentary confidence
MoroccoConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
MozambiqueRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
MyanmarProvisionaln/a
No constitutionally-defined basis to current regime
NamibiaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
NauruRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
NepalRepublicCeremonial
Ministry is subject to parliamentary confidence
NetherlandsConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
New ZealandConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
NicaraguaRepublicExecutive
Presidency is independent of legislature
NigerRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
NigeriaRepublicExecutive
Presidency is independent of legislature
North MacedoniaRepublicCeremonial
Ministry is subject to parliamentary confidence
NorwayConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
OmanAbsolute monarchyExecutive
All authority vested in absolute monarch
PakistanRepublicCeremonial
Ministry is subject to parliamentary confidence
PalauRepublicExecutive
Presidency is independent of legislature
PalestineRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
PanamaRepublicExecutive
Presidency is independent of legislature
Papua New GuineaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
ParaguayRepublicExecutive
Presidency is independent of legislature
PeruRepublicExecutive
Presidency is independent of legislature
PhilippinesRepublicExecutive
Presidency is independent of legislature
PolandRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
PortugalRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
QatarAbsolute monarchyExecutive
All authority vested in absolute monarch
RomaniaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
RussiaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
RwandaRepublicExecutive
Presidency is independent of legislature
Saint Kitts and NevisConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
Saint LuciaConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
Saint Vincent and the GrenadinesConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
SamoaRepublicCeremonial
Ministry is subject to parliamentary confidence
San MarinoRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
São Tomé and PríncipeRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
Saudi ArabiaAbsolute monarchyExecutive
All authority vested in absolute monarch
SenegalRepublicExecutive
Presidency is independent of legislature
SerbiaRepublicCeremonial
Ministry is subject to parliamentary confidence
SeychellesRepublicExecutive
Presidency is independent of legislature
Sierra LeoneRepublicExecutive
Presidency is independent of legislature
SingaporeRepublicCeremonial
Ministry is subject to parliamentary confidence
SlovakiaRepublicCeremonial
Ministry is subject to parliamentary confidence
SloveniaRepublicCeremonial
Ministry is subject to parliamentary confidence
Solomon IslandsConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
SomaliaRepublicCeremonial
Ministry is subject to parliamentary confidence
South AfricaRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
South SudanRepublicExecutive
Presidency is independent of legislature
SpainConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
Sri LankaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
SudanProvisionaln/a
No constitutionally-defined basis to current regime
SurinameRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
SwedenConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
SwitzerlandRepublicExecutive
Presidency is elected by legislature; ministry may be, or not be, subject to parliamentary confidence
SyriaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
TajikistanRepublicExecutive
Presidency is independent of legislature
TanzaniaRepublicExecutive
Presidency is independent of legislature
ThailandConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
TogoRepublicExecutive
Presidency is independent of legislature
TongaConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
Trinidad and TobagoRepublicCeremonial
Ministry is subject to parliamentary confidence
TunisiaRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
TurkeyRepublicExecutive
Presidency is independent of legislature
TurkmenistanRepublicExecutive
Presidency is independent of legislature
TuvaluConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
UgandaRepublicExecutive
Presidency is independent of legislature
UkraineRepublicExecutive
Presidency independent of legislature; ministry is subject to parliamentary confidence
United Arab EmiratesConstitutional monarchyExecutive
Monarch personally exercises power in concert with other institutions
United KingdomConstitutional monarchyCeremonial
Ministry is subject to parliamentary confidence
United StatesRepublicExecutive
Presidency is independent of legislature
UruguayRepublicExecutive
Presidency is independent of legislature
UzbekistanRepublicExecutive
Presidency is independent of legislature
VanuatuRepublicCeremonial
Ministry is subject to parliamentary confidence
Vatican CityAbsolute monarchyExecutive
All authority vested in absolute monarch
VenezuelaRepublicExecutive
Presidency is independent of legislature
VietnamRepublicExecutive
Power constitutionally linked to a single political movement
YemenProvisionaln/a
No constitutionally-defined basis to current regime
ZambiaRepublicExecutive
Presidency is independent of legislature
ZimbabweRepublicExecutive
Presidency is independent of legislature

Source: https://en.wikipedia.org/wiki/List_of_countries_by_system_of_government

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