| Tatiana Garmendia | |
| Fullname: | Tatiana Garmendia López |
| Nationality: | Spanish |
| Birth Date: | 16 February 1974 |
| Birth Place: | San Sebastián |
| Position: | Centre Back |
| Years1: | 1990–1998 |
| Clubs1: | BM Bidebieta |
| Years2: | 1998–2010 |
| Clubs2: | BM Bera Bera |
| Nationalyears1: | 1996-2008 |
| Nationalteam1: | Spain |
| Nationalcaps1: | 104 |
| Nationalgoals1: | 213 |
Tatiana "Tati" Garmendia López (born 16 February 1974) is a former Spanish handball player. She played for the club Akaba Bera Bera, and on the Spanish national team.
She played on the Spanish team at the 2008 European Women's Handball Championship, where Spain reached the final, after defeating Germany in the semifinal.[1]
Following her retirement, she became a coach at Bera Bera.[2]