A pipe hanger is formed of an elongate stem joined to a flexible, curved, substantially semicircular lower hook portion. The stem has holes therethrough for nailing to a support beam and suspending a run of plumbing piping from the support beam. The hook portion is of commensurate size to the pipe and cradles the pipe in a suspended position. In a preferred embodiment, a tooth extending angularly, outwardly and downwardly from the portion of the stem adjacent to the hook portion cooperates with the hook tip so that there is a snap fit between the tooth end and the hook tip as the pipe is urged therebetween and into a retained, cradling relation in the hook portion. Several alternative embodiments are disclosed which utilize a tooth movable into position over the pipe to hold the pipe in a retained, cradling relation in the hook portion.