C41

C41 or C-41 may be:

Vehicles

 * C-41 (rocket), an Italian sounding rocket
 * Alfa Romeo Racing C41, an Italian Formula One car
 * CASA C-41, a Spanish light transport aircraft in use by the United States Armed Forces
 * Canadair C-4-1 Argonaut
 * Citroën C41, a French sedan
 * Courage C41, a French racing car
 * Douglas C-41, an American military transport aircraft
 * Unterseeboot C-41, a German WW1 submarine

Places

 * C41 road (Namibia)
 * Caldwell 41, the Hyades star cluster

Other uses

 * C-41 process, for developing colour negative film
 * Bone tumor (disease code )
 * Philidor Defence (C41), a chess opening