| Native Name: | Цэндийн Нямдорж |
| Office1: | Minister of Justice and Internal Affairs |
| President1: | Khaltmaagiin Battulga |
| Term Start1: | 4 October 2017 |
| Term End1: | 8 July 2020 |
| Predecessor1: | Sandag Byambatsogt |
| Successor1: | Khishigeegiin Nyambaatar |
| President2: | Nambaryn Enkhbayar Tsakhiagiin Elbegdorj |
| Term Start2: | 2008 |
| Term End2: | 2012 |
| Predecessor2: | Tsend Munkh-Orgil |
| Successor2: | Khishigdemberel Temuujin (Minister of Justice) |
| President3: | Natsagiin Bagabandi |
| Term Start3: | 2001 |
| Term End3: | 2005 |
| Predecessor3: | Dash Ganbold |
| Successor3: | Batbold Sandui |
| Office4: | Chairman of the State Great Khural |
| Term Start4: | July 2005 |
| Term End4: | June 2007 |
| Predecessor4: | Nambar Enkhbayar |
| Successor4: | Danzangiin Lundeejantsan |
| Birth Place: | Mongolian People's Republic |
| Birth Date: | 10 August 1956 |
| Nationality: | Mongolian |
| Party: | Mongolian People's Revolutionary Party |
Tsendiin Nyamdorj (Mongolian: Цэндийн Нямдорж; 1956) is a Mongolian politician. He served as Minister of Justice and Internal Affairs from 2017 to 2020 and the Chairman of the State Great Khural from 2005 to 2007.[1] Nyamdorj is a member of the Dörvöd tribe.[2]
Nyamdorj was born 1956 in the Malchin sum of Uvs Aimag (province). He studied law in Leningrad and made his degree in 1981. After that he worked as an attorney general. From 1988 he worked for the council of ministers. Between 1990 and 1992 he was deputy minister of justice. Since 1992 he is a member of Parliament for the Mongolian People's Revolutionary Party (MPRP), representing constituency #39 in the Uvs Aimag.
From 2000 to 2004 he served as Minister of Justice and the Interior.[3]
In 2005 he succeeded Nambar Enkhbayar as the Chairman of the State Great Khural. In April 2007, the constitutional court decided that Nyamdorj had violated the constitution by unilaterally changing the text of several laws from the version approved by parliament. The DP fraction demanded that Nyamdorj resign, but the MPRP dominating the parliament tried to help him to keep his position as chairman.[4] He resigned on June 12, 2007.[5]