Sommerlad is a surname. Notable people with the surname include:
Bernhard Sommerlad (1905–1979), German journalist, Verlagsbuchhändler und Schriftsteller Ernst Sommerlad (1895–1977), German architect Fritz Sommerlad (1866–1918), German philosopher (Wikisource: Fritz Sommerlad) Ralf Sommerlad (1952–2015), German biologist, author und nature photographer Theo Sommerlad (1869–1940), German historian Ernest Sommerlad (1886–1952), Australian politician, father of Lloyd Lloyd Sommerlad (1919–2014), Australian politician, son of Ernest
See also Sommerlath Somerled (mid-12th-century), Norse-Gaelic lord who created the Kingdom of Argyll and the Isles