A series of zinc dihalides [(IMes)ZnX₂] [X = Cl (1a) Br (1b), I (1c); IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene] is reported. The iodide 1c underwent salt metathesis with NaH as an alternative synthesis of [(IMes)ZnH₂]₂ (2). 2 readily reacted with (tBu)NCO and Ph₂CO under Zn-H insertion to give [(IMes)Zn(tBuNCHO-κN)₂] (3) and [(IMes)Zn(OCHPh₂)₂] (4), respectively. Ph₂S₂ and I₂ oxidized the hydride ligands in 2 to give dihydrogen and [(IMes)Zn(SPh)₂] (5) and 1c, respectively. A series of mixed halo hydrides [(IMes)Zn(X)(H)]₂ [X = Cl (6a), Br (6b), I (6c)] was obtained upon comproportionating 2 with 1a–c. The new compounds were fully characterized, including X-ray crystallographic analysis of 3 and 6b.