Stellmach is a surname derived from the German word "Stellmacher", meaning "cartwright" or "wheelwright". It is a variant of the surname Stelmach.

Notable people with the surname include:

Thomas Stellmach (born 1965), German animated film producer and director Manuela Stellmach (born 1970), German swimmer Natascha Stellmach (born 1970), Australian artist

See also