| Lothar Koepsel | |
| Fullname: | Lothar Koepsel |
| Nationality: | East Germany |
| Birth Date: | 20 July 1945 |
| Birth Place: | Berlin, Germany |
| Height: | 1.72m (05.64feet) |
| Classes: | Soling |
| Club: | SC Berlin-Grünau |
| Medaltemplates-Title: | Competition record |
| Show-Medals: | yes |
| Updated: | 1 March 2014 |
Lothar Koepsel (born 20 July 1945, in Berlin) is a sailor from East Germany. Koepsel represented his country at the 1972 Summer Olympics in Kiel. Koepsels took 14th place in the Soling with Roland Schwarz as helmsman and Werner Christoph as fellow crew member.