David Brown Kurtz (1819–March 23, 1898), aka Daniel Brown Kurtz, was an American Whig and Democratic politician from California.Kurtz was born 1819 in Pennsylvania. He came to San Diego in 1850 where he studied law. He was admitted to the bar in 1856. He also was a contractor and constructed several buildings in Old Town San Diego and elsewhere. Kurtz was the second mayor of San Diego under U.S. rule, from 1851 until 1852.