| Lassina Diomandé | |
| Birth Date: | 24 June 1979 |
| Birth Place: | Abidjan, Ivory Coast |
| Currentclub: | Lokomotiv Mezdra |
| Position: | defender |
| Clubnumber: | 30 |
| Years1: | 1998–1999 |
| Years2: | 2000–2003 |
| Years3: | 2003–2008 |
| Years4: | 2009– |
| Clubs1: | Man FC |
| Clubs4: | Loko Mezdra |
| Caps1: | ? |
| Caps2: | ? |
| Caps3: | ? |
| Goals1: | ? |
| Goals2: | ? |
| Goals3: | ? |
| Nationalyears1: | 2001 |
| Nationalteam1: | Ivory Coast |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Pcupdate: | 15:18, 2 March 2009 (UTC) |
Lassina Diomandé (born 24 June 1979 in Abidjan, Ivory Coast) is an Ivorian footballer who plays in the defender position. He currently plays for Lokomotiv Mezdra in the Bulgarian top division.
After spending the first ten years of his career in his home country with Man Fc, Africa Sports National and Jeunesse Club d'Abidjan, Diomandé relocated to Bulgaria in February 2009, signing a contract with Lokomotiv Mezdra.
He played for Ivory Coast national football team and was capped one time in 2001.