In this paper we study the existence and stability of normalized standing waves for the nonlinear Schrödinger equation on a general starlike graph with potentials. Under general assumptions on the graph and the potential, we show the existence of orbitally stable standing waves when the nonlinearity is L 2 -critical and supercritical.2010 Mathematics Subject Classification. Primary 76B25, 35Q51, 35Q55, 35R02.