| Image Coa: | Wappen-Hassmersheim.svg |
| Coordinates: | 49.3003°N 9.1492°W |
| Image Plan: | Haßmersheim in MOS.svg |
| State: | Baden-Württemberg |
| Region: | Karlsruhe |
| District: | Neckar-Odenwald-Kreis |
| Elevation: | 145 |
| Area: | 19.15 |
| Postal Code: | 74855 |
| Area Code: | 06266, 06261 (Hochhausen) |
| Licence: | MOS, BCH |
| Gemeindeschlüssel: | 08 2 25 033 |
| Divisions: | 3 |
| Website: | www.hassmersheim.de |
| Mayor: | Christian Ernst[1] |
| Leader Term: | 2021 - 29 |
| Party: | independent |
Haßmersheim (South Franconian: Hassmerse or Hassemse) is a municipality in the district of Neckar-Odenwald-Kreis, in Baden-Württemberg, Germany.
Haßmersheim consists of three subdivisions: