Voelker is a surname. Notable people with the surname include:
Bobby Voelker (born 1979), American mixed martial artist
Christopher Voelker (born 1961), American photographer
David Voelker (1953–2013), American entrepreneur and philanthropist
Frank Voelker, Jr. (1921–2002), American lawyer and politician
Frank Voelker, Sr. (1892–1963), American judge
Elke Voelker (born 1968), German organist and musicologist
Heidi Voelker (born 1968), American alpine skier
John D. Voelker (1903–1991), American writer
