Chromitite pods hosted by serpentinized harzburgites of the Rayat ophiolite in the Zagros suture tectonic zone, northeasten Iraq, were studied petrographically and geochemically. These chromitites comprise high-Cr podiform ophiolitic chromite deposit and consist of magesiochromite in a matrix dominated by serpentine with minor carbonate minerals. The chromitites contain 40.2 wt% Cr₂O₃, 15.8 wt% MgO, 11.4 wt% Al₂O₃, and 16.7 wt% Fe₂O_3t, and lesser amounts of the other major oxides and traces of Ba, Co, Cu, Ga, Mn, Ni, Rb, Sc, Sr, Ti, V, and Zn. Magnesiochromites of chromitites contain Cr₂O₃ (55.6 wt%), MgO (15.2 wt%), FeO_t (13.8 wt%), and Al₂O₃ (14.3 wt%), and minor amounts of Ni, Ti, Mn and V; their average Cr# and Mg# are 0.72 and 0.71, respectively. Accessory chromite in the serpenitinized harzburgite contains 56.9 wt% Cr₂O₃, 9.9 wt% MgO, 19.6 wt% FeO_t, and 12.7 wt% Al₂O₃; with Cr# and Mg# of 0.75 and 0.49, respectively. The relatively high concentrations of compatible trace elements which have strong affinity to Cr and Mg such as Ni, V, Co, and the low concentrations of incompatible LILE (K, Rb, Sr, and Ba) elements as well as the high concentrations of mantle rock-forming elements (MRFE: Si, Al, Fe, Mg, Ca, Cr, Ni, Zn, Co, and Cu) is a characteristic feature of the Rayat chromitite and indicates mantle origin. The chromitites also contain very low Au (3 ppb) and PGE (53 ppb). The IPGEs (Os, Ir, and Ru) are enriched and are ~ 8 times higher than the PPGEs (Rh, Pt, and Pd), with a positive peak of Ru and a negative peak of Pt in the chondrite-normalized diagram. The chondrite-normalized PGE pattern has generally lower concentrations but similar trend to most high-Cr chromitites of the world. The chromitites belong to Group-I “normal ophiolite type” indicated from the Pt_n/Pd_n vs. Pt_n/Ir_n diagram. Various tectonic discrimination diagrams including the calculated parental melt compositions of Al₂O₃, TiO₂ and FeO_t/MgO for the magnesiochromites and chromites suggest that the Rayat chromitites were derived from boninitic magmas within suprasubduction zone in a fore-arc tectonic setting during the formation of the Taurus (Turkey) - Zagros (Iran/Iraq) Ophiolite Belt.