| Adolfas Aleksejūnas | |
| Nationality: | Lithuanian |
| Birth Date: | 27 June 1937 |
| Birth Place: | Meldiniai, Lithuania |
| Height: | 172 cm |
| Weight: | 66 kg |
| Sport: | Middle-distance running |
| Event: | Steeplechase |
Adolfas Aleksejūnas (Адольфас Алексеюнас; born 27 June 1937) is a Lithuanian middle-distance runner. He competed in the men's 3000 metres steeplechase at the 1964 Summer Olympics, representing the Soviet Union.[1]