| Country: | Bangladesh |
| 20 Party Alliance | |
| Native Name: | ২০ দলীয় ঐক্যজোট |
| Leader: | Khaleda Zia (Bangladesh Nationalist Party) |
| Foundation: | 18 April 2012 |
| Dissolution: | 12 December 2022 |
| Predecessor: | Four Party Alliance |
| Successor: | 12 Parties Alliance & Nationalist Likely Minded Alliance (6 Parties) |
| Ideology: | Nationalism Conservatism Islamic democracy |
| Position: | Big tent (Centre to far-right) |
| Seats1 Title: | Seats in the Jatiyo Sangshad |
| Headquarters: | Dhaka, Bangladesh |
| Seats2 Title: | City Corporation |
The 20 Party Alliance was a Bangladeshi coalition of right-wing political parties, led by the Bangladesh Nationalist Party.[1] It was originally formed as the 18 Party Alliance on 18 April 2012 in Dhaka, extending its predecessor the Four Party Alliance.[2] The 18 Party Alliance was formed in an effort to strengthen the opposition's demands for restoring the caretaker government system used between 1996 and 2008. The main rival of this alliance is the Grand Alliance, led by Awami League which came into power after the election in 2008.
The BNP are simultaneously in Jatiya Oikya Front and this alliance.[3]
The Four Party Alliance was a political grouping in the Jatiyo Sangshad, or National Assembly of Bangladesh. It was formed in 1999[4] for the 2001 election, and consisted of the Bangladesh Nationalist Party, Jamaat-e-Islami Bangladesh, Bangladesh Jatiya Party (Najiur) and Islami Oikya Jote. The alliance won a substantial majority in 2001, but was heavily defeated by the Awami League-led Grand Alliance of Bangladesh in 2008. On 18 April 2012, the Four Party Alliance was extended and took the new name 18 Party Alliance.
In the 2001 Bangladeshi general election, the Four Party Alliance won 214 of the 300 seats in parliament.
Total seats: 300
Four Party Alliance : 214
Bangladesh Awami League: 62
Islami Jatiya Oikya Front(Jatiya Party): 14
Independents and others : 10
In the 2008 Bangladeshi general election, the Four Party Alliance won 33 of the 300 seats in parliament.
Total seats: 300
Four Party Alliance : 33
Grand Alliance: 263
Independents and others : 04