| Communists' Unity Board | |
| Native Name: | Mesa para la Unidad de los Comunistas |
| Lang1: | Spanish |
| Secretary General: | Santiago Carrillo |
| Founded: | 1986 |
| Dissolved: | 1986 |
| Headquarters: | Madrid |
| Ideology: | Eurocommunism Revolutionary Marxism |
| Position: | Left-wing |
| State: | Spain |
The Communists' Unity Board (in Spanish: Mesa para la Unidad de los Comunistas) was an electoral coalition in Spain formed to contest the 1986 general election, composed primarily by Santiago Carrillo's split party, the Workers' Party of Spain–Communist Unity.[1]