| Hannah Sell | |
| Office: | General Secretary of the Socialist Party |
| Term Start: | 2020 |
| Predecessor: | Peter Taaffe |
| Office1: | National secretary of Youth against Racism in Europe (YRE) |
| Term Start1: | 1992 |
| Term End1: | 1996 |
| Office2: | Youth representative on the National Executive Committee of the Labour Party |
| Term Start2: | 1988 |
| Term End2: | 1990 |
| Predecessor2: | Linda Douglas |
| Successor2: | Alun Parry |
| Party: | Socialist Party |
Hannah Sell (born 1971) is a British Marxist political activist. She is general secretary of the Socialist Party[1] having been a member of the party and its predecessor, Militant, since the 1980s. Sell succeeded Peter Taaffe as general secretary in 2020. She was a member of the National Executive Committee of the Labour Party in 1988 and 1989,[2] representing the Labour Party Young Socialists. She was national secretary of Youth against Racism in Europe (YRE) between 1992 and 1996.[3]
She is the author of the book Socialism in the 21st Century[4] and numerous articles in The Socialist and Socialism Today.[5] She has also been supportive of the Youth Fight for Jobs campaign which aims to raise awareness of youth unemployment and provide a voice for young unemployed and low paid workers.