Thiess (surname)

Thiess is a north German name originating from the given name Matthias. It may refer to
 * Dorothea Thiess (1897–1973), German stage, film and television actress
 * Frank Thiess (1890–1977), German writer
 * Leslie Thiess (1909–1992), Australian construction and mining entrepreneur
 * Ursula Thiess (1924–2010), German film actress