Twenty Constitutions
TWENTY
CONSTITUTIONS
DIGITIZATION.
89 years of Thai constitutional history — 38 documents, 2,797 sections, 13 thematic dimensions.
At a glance
38
Constitutions
2,797
Sections
1932–2021
Year range
89 years
12
Full constitutions
26 amendments & interim
2540
Longest document
336 sections
110k
Total words
Constitutional timeline
Row height = section count · Fill = regime · Click to open
2475
2489
2490 (interim)
2492188
2502
2511183
2515
2517238
2519
2520
2521206
2534 (interim)
2534223
2540336
2549 (interim)
2550309
2557 (interim)
2560270
193219451957196819781991200120102021
Civilian
Semi-Military
Military
Document types
Full12(32%)
Interim6(16%)
Amendment20(53%)
Sections by regime
Civilian54.4%
Semi-Military17.6%
Military28.0%
Thematic weight by era
Darker = stronger thematic presence. Click a row to filter the constitution table below.
| Legislature | Executive | Monarchy | Rights & Duties | State Policy | Elections | Judiciary | Local Gov. | Oversight | Ethics | Finance | Participation | Other | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Early Democracy | |||||||||||||
| Post-Coup 1947 | |||||||||||||
| Dictatorship | |||||||||||||
| Democratic Spring | |||||||||||||
| Semi-Democracy | |||||||||||||
| Modern Democracy | |||||||||||||
| Post-Coup 2006 | |||||||||||||
| Post-Coup 2014 |
Low
High· Click a row to filter table
Era breakdown
| Era | Period | Docs | Sections | Dominant Regime |
|---|---|---|---|---|
| Early Democracy | 1932–1946 | 5 | 173 | Civilian |
| Post-Coup 1947 | 1947–1951 | 6 | 339 | Military |
| Dictatorship | 1952–1972 | 3 | 226 | Military |
| Democratic Spring | 1973–1976 | 3 | 272 | Civilian |
| Semi-Democracy | 1977–1991 | 4 | 248 | Semi-Military |
| Modern Democracy | 1992–2005 | 10 | 850 | Civilian |
| Post-Coup 2006 | 2006–2013 | 4 | 365 | Civilian |
| Post-Coup 2014 | 2014–2021 | 3 | 324 | Semi-Military |
All constitutions
38 of 38 shown| Year↑ | Name↕ | Type | Era | Regime | Sections↕ | Top Theme |
|---|---|---|---|---|---|---|
| 1932 | 2475 | full | Early Democracy | Civilian | 68 | Legislature |
| 1939 | 2482 | amendment | Early Democracy | Civilian | 3 | Other |
| 1940 | 2483 | amendment | Early Democracy | Civilian | 3 | Other |
| 1942 | 2485 | amendment | Early Democracy | Military | 3 | Elections |
| 1946 | 2489 | full | Early Democracy | Civilian | 96 | Other |
| 1947 | 2490 (interim) | interim | Post-Coup 1947 | Military | 98 | Legislature |
| 1947 | 2490 (amended) | amendment | Post-Coup 1947 | Military | 3 | Other |
| 1948 | 2491 (No.2) | amendment | Post-Coup 1947 | Military | 12 | Legislature |
| 1948 | 2491 (No.3) | amendment | Post-Coup 1947 | Military | 1 | — |
| 1949 | 2492 | full | Post-Coup 1947 | Civilian | 188 | Legislature |
| 1952 | 2495 | amendment | Post-Coup 1947 | Military | 37 | — |
| 1959 | 2502 | full | Dictatorship | Military | 20 | Monarchy |
| 1968 | 2511 | full | Dictatorship | Military | 183 | Legislature |
| 1972 | 2515 | interim | Dictatorship | Military | 23 | Executive |
| 1974 | 2517 | full | Democratic Spring | Civilian | 238 | Legislature |
| 1975 | 2518 | amendment | Democratic Spring | Civilian | 5 | Other |
| 1976 | 2519 | full | Democratic Spring | Military | 29 | Executive |
| 1977 | 2520 | interim | Semi-Democracy | Military | 32 | Executive |
| 1978 | 2521 | full | Semi-Democracy | Semi-Military | 206 | Legislature |
| 1985 | 2528 | amendment | Semi-Democracy | Semi-Military | 6 | Other |
| 1989 | 2532 | amendment | Semi-Democracy | Semi-Military | 4 | Legislature |
| 1991 | 2534 (interim) | interim | Modern Democracy | Military | 33 | Executive |
| 1991 | 2534 | full | Modern Democracy | Military | 223 | Legislature |
| 1992 | 2535 (No.1) | amendment | Modern Democracy | Civilian | 5 | Legislature |
| 1992 | 2535 (No.2) | amendment | Modern Democracy | Civilian | 3 | Other |
| 1992 | 2535 (No.3) | amendment | Modern Democracy | Civilian | 3 | Other |
| 1992 | 2535 (No.4) | amendment | Modern Democracy | Civilian | 3 | Other |
| 1995 | 2538 | amendment | Modern Democracy | Civilian | 217 | Legislature |
| 1996 | 2539 | amendment | Modern Democracy | Civilian | 23 | Legislature |
| 1997 | 2540 | full | Modern Democracy | Civilian | 336 | Legislature |
| 2005 | 2548 | amendment | Modern Democracy | Civilian | 4 | Other |
| 2006 | 2549 (interim) | interim | Post-Coup 2006 | Military | 39 | Executive |
| 2007 | 2550 | full | Post-Coup 2006 | Civilian | 309 | Legislature |
| 2011 | 2554 (No.1) | amendment | Post-Coup 2006 | Civilian | 13 | Legislature |
| 2011 | 2554 (No.2) | amendment | Post-Coup 2006 | Civilian | 4 | Other |
| 2014 | 2557 (interim) | interim | Post-Coup 2014 | Military | 48 | Executive |
| 2017 | 2560 | full | Post-Coup 2014 | Semi-Military | 270 | Legislature |
| 2021 | 2564 | amendment | Post-Coup 2014 | Semi-Military | 6 | Other |