The manganese carbonyl complex [MnBr(CO)3L] (1), where L = Ph2POCH2CH2OPPh2, was prepared by reacting [MnBr(CO)5] with the bidentate ligand 1, 2‐Bis(diphenylphosphinite)ethane. From this compound and the appropriate phosphite, phosphinite or phosphonite ligands were synthesized the complexes [MnBr(CO)2LL′], where L′ = P(OMe)3 (2) or P(OEt)3 (3) and [MnBr(CO)3L′2], where L′ =PPh(OEt)2 (4) or PPh2(OEt) (5).The obtained compounds have been characterized by elemental analysis, mass spectrometry, IR and NMR (1H, 13C and 31P) spectroscopies and X‐ray diffractometry for the complexes 1, 4 and 5.