Political parties in Sikkim

Major national-level parties

 * Indian National Congress (INC)
 * Bharatiya Janata Party, Sikkim Unit

Major regional parties

 * Sikkim Krantikari Morcha (SKM)
 * Sikkim Democratic Front (SDF)

Minor regional parties

 * Sikkim Progressive Alliance (SPA)
 * Sikkim Sangram Parishad (SSP)
 * Sikkim Rajya Manch Party (SRMP) led by Rup Narayan Chamling
 * Sikkim National People’s Party (SNPP) led by Delay Namgyal Barfungpa
 * Sikkim United Front Party (SUFP) led by Narendra Adhikari
 * Hamro Sikkim Party (HSP)
 * Organization of Sikkimese Unity (OSU)
 * Sikkim Independent Front (SIF)
 * Sikkim Gorkha Party (SGP)
 * Sikkim Scheduled Caste League (SSCL)
 * Sikkim Republican Party (SRP)
 * Sikkim National Liberation Front (SNLF)
 * Sikkim Gorkha Prajatantrik Party (SGPP)
 * Gorkha National Liberation Front (GNLF)
 * Citizen Action Party -Sikkim

Defunct parties

 * Sikkim National Party
 * Rajya Praja Sammelan (RPS) {merged with Sikkim National Congress in 1962}
 * Sikkim Swatantra Dal (SSD) {merged with Sikkim National Congress in 1962}
 * Sikkim State Congress (SSC) {merged with Sikkim Janata Congress in 1972}
 * Sikkim Janata Party (SJP) {merged with Sikkim Janata Congress in 1972}
 * Sikkim Janata Congress (SJC) {merged with Sikkim National Congress in 1973}
 * Sikkim National Congress (SNC) {merged with Indian National Congress in 1975}
 * Sikkim Janata Parishad (SJP) {merged with Indian National Congress in 1982}
 * Sikkim Congress (Revolutionary) (SCR)
 * Sikkim Himali Congress (SHC)
 * Sikkim Prajatantra Congress (SPC)
 * Rising Sun Party (RIS)
 * Sikkim Ekta Manch (SEM) {merged with Indian National Congress in 1998}
 * Sikkim Janashakti Party (SJP) {merged with Indian National Congress in 1999}
 * Nepali Bhutia Lepcha (NEBULA) {merged with Trinamool Congress in 2013}
 * Sikkim Himali Rajya Parishad (SHRP) {merged with Indian National Congress in 2014}