| Alexander Lokhmanchuk | |
| Position: | Power forward |
| Height Ft: | 6 |
| Height In: | 10.25 |
| Weight Lbs: | 223 |
| Birth Date: | 28 May 1973 |
| Birth Place: | Kerch, Ukrainian SSR, Soviet Union |
| Nationality: | Ukrainian |
| Career Start: | 1990 |
| Career End: | 2007 |
| Years1: | 1990–1992 |
| Years2: | 1992–1994 |
| Team2: | Kharkiv |
| Years3: | 1994–1997 |
| Team3: | BC Budivelnyk |
| Years4: | 1997–1998 |
| Team4: | Pallacanestro Varese |
| Years5: | 1998 |
| Team5: | Oyak Renault |
| Years6: | 1999 |
| Team6: | Fenerbahçe |
| Years7: | 1999–2000 |
| Team7: | Aurora Basket Jesi |
| Years8: | 2000–2001 |
| Team8: | Bayer Leverkusen |
| Years9: | 2001–2002 |
| Team9: | Opel Skyliners |
| Years10: | 2002–2003 |
| Team10: | SLUC Nancy |
| Years11: | 2003–2004 |
| Team11: | Azovmash Mariupol |
| Years12: | 2004–2005 |
| Team12: | BC Kyiv |
| Years13: | 2005–2006 |
| Team13: | Walter Tigers Tübingen |
| Years14: | 2006–2007 |
| Team14: | BC Budivelnyk |
Alexander Lokhmanchuk (Ukrainian: Александр Лохманчук; born 28 May 1973 in Kerch, Ukrainian SSR, Soviet Union) is a former professional basketball player of Ukraine men's national basketball team. The forward is 2.09 m tall.
Lokhmanchuk was a regular Ukraine national basketball team player.