Kreiss is a surname. Notable people with this surname include: Lisa Bonder-Kreiss (born 1965), American tennis player Fanni Kreiss (born 1989), Hungarian fencer George Kreiss (1830–1907), American politician Gunilla Kreiss (born 1958), Swedish mathematician, daughter of Heinz-Otto Heinz-Otto Kreiss (1930–2015), German-Swedish mathematician, father of Gunilla Loren B. Kreiss (born 1981), American Interior designer and entrepreneur Murray Kreiss, founder of the Kreiss furniture company Robert Kreiss (born 1953), American tennis player Jonathan Kreiss-Tomkins (born 1989), American politician Yitshak Kreiss (born 1965), Israeli physician and medical administrator