Silver dicyanonitromethanide, AgC(CN)2NO2, is monoclinic, space group C2/c with a = 29.571 (20), b = 7.818 (8), c = 19.581 (14) Å, β=116.69 (5)°, Z = 32, Dcalc = 2.863 g cm−3, Dobs = 2.87 (5) g cm−3. Least‐squares refinement of diffractometer data converged at a conventional R index of 0.035. The four crystallographically independent C(CN)2NO2− ions are all close to planar and close to mm2 symmetry but with real deviations from both. The average bond lengths are: C‐C, 1.389 (6); C‐N, 1.373 (8); C N, 1.140 (6); N‐O, 1.252 (6) Å. Seven of the eight cyano groups are coordinated more or less linearly to silver ions at N … Ag distances of 2.12 to 2.34 Å. Each of the four nitro groups acts as a bidentate ligand to a single silver ion with O … Ag distances from 2.28 to 3.00 Å. There are also several other N … Ag and O … Ag distances under 3.00 Å. The coordination about each of the silver ions is highly irregular.