'''Lamarca''' or '''LaMarca''' is a surname. Notable people with the surname include:
*Anthony LaMarca, American musician *Carla Lamarca (born 1982), Brazilian musician *Carlos Lamarca (1937–1971), Brazilian communist *Dolors Lamarca (1943–2026), Spanish-Catalan philologist and librarian *Guillermo Lamarca (born 1949), Argentine rugby union player and coach *Iñigo Lamarca (born 1959), Spanish lawyer *Roberto Lamarca (1959–2017), Venezuelan actor *Russell LaMarca, American politician *Tania Lamarca (born 1980), Spanish rhythmic gymnast
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