The 21st Multi-member Constituency - Sliven is a constituency of the Bulgarian National Assembly whose borders are the same as Sliven Province. It sends 6 representatives to the assembly.

After the October 2024 election, the constituency's seats were represented by:

Name Party Desislava Taneva Mariya Belova Hyusein Hafazov Kliment Shopov Tatyana Siveva Deyan Dechev

See also Politics of Bulgaria List of Bulgarian Constituencies

References