Surname Bučas (Bučas 
, Бучас 
) , around the world, is a very rare cognomen. The family name Bučas is habitual in Lithuania, where it is a rare surname, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Bučas | Lithuania |
| Бучас | Russia |
| bernardas bučas Lithuanian artist (1903-1979), LT (b. 1903) |
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| algirdas bučas Lithuanian entrepreneur, LT (b. 1939) |
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| jurgis bučas (b. 1936) |
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| vytautas bučas LT (b. 1968) |
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