Wecker is a surname. Notable people with the surname include:
Andreas Wecker (born 1970), German Olympic gymnast
David Wecker (born ?), U.S. radio host and newspaper columnist
Georg Caspar Wecker (bapt. 1632–1695), German Baroque organist and composer
Johannes Jacob Wecker (1528–1586), Swiss physician
Kendra Wecker (born 1982), U.S. basketball player
Konstantin Wecker (born 1947), German singer and songwriter
Louis de Wecker (1832–1906), French ophthalmologist
William Booth Wecker (1892–1969), U.S. entertainer, showman, and army veteran