Ozoliņš is a Latvian masculine surname, which is derived from the Latvian word ozols, meaning "oak tree"; its feminine counterpart is Ozoliņa. In the former Soviet Union the name was often transliterated as Ozolin (masculine) or Ozolina (feminine). It may refer to:
Agnese Ozoliņa (born 1979), Latvian swimmer
Alberts Ozoliņš (1896–1985), Latvian weightlifter
Edvin Ozolin (born 1939), Soviet sprinter and coach
Elvīra Ozoliņa (born 1939), Soviet javelin thrower
Kārlis Ozoliņš (born 1994), Latvian ice hockey player
Nikolay Ozolin (1906–2000), Russian pole vaulter
Sandis Ozoliņš (born 1972), Latvian ice hockey player
Sinta Ozoliņa-Kovala (born 1988), Latvian javelin thrower
Valdemārs Ozoliņš (1896–1973), Latvian composer and conductor