Alkenes are important reaction intermediates in organic synthesis and used as monomers in polymerizations. A straightforward route to their synthesis is the desaturation of alkanes by removal of dihydrogen. The thermodynamically and kinetically challenging process has been realized with various metal catalysts, including Ir, Ru, Os, and Rh, and stoichiometric amounts of an oxidant or hydrogen acceptor at elevated temperatures of 200 o C or higher. Stoichiometric methods for desaturation rely on in-situ generated radicals as intramolecular hydrogen acceptor. Pincer-type metal complexes and a hydrogen acceptor have been used for the desaturation of cyclic ethers, aliphatic ketones, amines, or N-heterocycles 4a,6 at temperatures exceeding 100 o C (Fig. ). Jones et al. reported the catalytic acceptorless dehydrogenation of N-heterocycles by Fe and Co pincer ligated metal complexes at hightemperatures. Further, metal-free dehydrogenation of N-heterocycles was achieved by boranebased catalysts. Photocatalytic dehydrogenation typically uses cobaloxime complexes for H2 release. Sorensen, Li and Huang, reported the dehydrogenation of aliphatic and Nheterocycles (Fig. ) using a combination of a photoredox catalysts, such as the decatungstate anion, Ru(bpy)3Cl2•6H2O, or 2-chloroanthraquinone, with a cobaloxime complex. While the reaction is of perfect atom economy, the product yield was low and the scope of starting materials limited. The photochemical dehydrogenation of N-heterocycles was achieved by a combination of acridinium salt and transition metal catalysts, but gave arenes rather than alkenes (Fig. ). 11 Combinations of photoredox and nickel catalysis have been widely used in C-C and Cheteroatoms bond formation, and a recent report by Murakami and coworkers demonstrated dehydrogenative cross coupling with nickel complexes. Inspired by the recent reports 11b, we hypothesized that the excited Ir (III) photocatalyst [E1/2 ox = +1.21 V vs SCE] can oxidize bromide anions to bromo radicals (Br • ) [E1/2 ox = +0.66 V] as potential hydrogen atom abstraction reagents, and the resulting Ir (II) [E1/2 red = -1.37 V] can be oxidized by Ni(II) ions [E1/2 red = -1.17 V] closing a catalytic cycle. We therefore investigated the photocatalytic dehydrogenation using a NiBr2(dtbbpy) complex for the photochemical release of H2, and report, to the best to our knowledge, the first photocatalytic dehydrogenation of conjugated and non-conjugated N-heterocycles using a dual Ir photo-nickel catalysis at room temperature (Fig. ).