Support for lamp holders, especially lam holders for halogen lamps, comprising a body (1) having an inner cavity (10) wherein a lamp holder (2) may be positioned and more appendixes (13) destined to hook the lamp holder (2) in correspondence of a surface (21) thereof. The said body (2) is provided with a mouth section (12) through which the lamp holder is inserted into the said cavity (10) and is also provided with a base portion (11) opposite to the said mouth section. Each of said appendixes (13) protrudes from the lateral inner wall of the body (1) in proximity of the mouth (12), is provided with a free end which is oriented towards the said base portion (11) and is destined to hook the said surface (21) of the lamp holder.