The coordination chemistry of nonmacrocyclic ligands containing only N, C, and H atoms is surveyed. Such ligands include ammonia and linear polyamines as well as heterocyclic N‐compounds and catenated N‐systems. Among the topics discussed are N‐ligand synthesis, metal–N bond formation, reactions of coordinated N‐donor ligands, and the utilization of metal–N complexes. Structural and theoretical aspects include the consideration of metal–N stability constants, hard‐acid soft‐base concepts, inorganic reaction mechanisms, molecular mechanics, chelate ring stereochemistry, chirality, and supramolecular chemistry.