Sulzer may refer to:

• Alain Claude Sulzer (born 1953), Swiss writer and translator
• Alexander Sulzer (born 1984), German ice hockey player
• Charles August Sulzer, delegate to the United States House of Representatives from the Territory of Alaska
• David Sulzer (born 1956), American neuroscientist
• Joe Sulzer, US politician
• Johann Sulzer (disambiguation)
• Julius Sulzer (1830–1891), Austrian composer and conductor, son of Salomon
• Salomon Sulzer (1804–1890), Austrian cantor, synagogal music composer
• Simon Sulzer (1508–1585) Swiss theologian
• William Sulzer (1863–1941), a Governor of New York

• 16505 Sulzer, a main-belt asteroid
• Conrad Sulzer Regional Library, Chicago
• Sulzer, Alaska, a former settlement on Prince of Wales Island, which serviced a nearby copper mine operated by Charles and William Sulzer

• Sulzer (manufacturer), a Swiss industrial engineering and manufacturing business

• Sulz (disambiguation)