Theodor "Theo" Helfrich (13 May 1913 in Frankfurt am Main – 29 April 1978 in Ludwigshafen am Rhein) was a racing driver from Germany.
He participated in three World Championship Grands Prix, debuting on 3 August 1952, but scored no championship points.
He was German Formula Two Champion in 1953, took a number of wins in the German Formula Three Championship in a Cooper-Norton, and finished in second place in the 1952 24 Hours of Le Mans race.