Muldaur is a surname. Notable people with the name include:

• Diana Muldaur (born 1938), American television and film actress

• Geoff Muldaur (born 1943), American folk singer, guitarist, and composer

• Maria Muldaur (born 1943), American folk and blues singer

See also

• Mulder (surname)

• Moulder (disambiguation)

• Molder (disambiguation)