Abstractσ‐Bond metathesis reactions between [(6‐Dipp)CuOtBu] (6‐Dipp=:C({Dipp}NCH₂)₂CH₂, Dipp=2,6‐iPr₂−C₆H₃) and three diboranes gave access to three new copper(I) boryl complexes [(6‐Dipp)CuBcat], [(6‐Dipp)CuBneop], and [(6‐Dipp)CuBhex] (cat=1,2‐O₂C₆H₄; neop=(OCH₂)₂C(CH₃)₂; hex=OC(CH₃)HCH₂C(CH₃)₂O). Whilst [(6‐Dipp)CuBcat] and [(6‐Dipp)CuBneop] formed rapidly in toluene, access to [(6‐Dipp)CuBhex] required heating to 60 °C for days. The complexes were characterised by single‐crystal X‐ray crystallography which showed in all three cases that the systems were monomers and distorted‐linear at the copper atom. The stability of [(6‐Dipp)CuBneop] was found to be comparable to that of [(IPr*)Cu‐Bneop] (IPr*=1,3‐bis(2,6‐(diphenylmethyl)‐4‐methylphenyl)imidazol‐2‐ylidene); it persisted in solution for days with no sign of decomposition. [(6‐Dipp)CuBhex] is a rare crystallographically characterised example of a complex containing a boryl anion supported by the hexylene glycolato ligand.