A large single crystal of bcc Sr was grown in situ and was used to study the lattice dynamics of this divalent metal by coherent inelastic neutron scattering. The phonon dispersion curves were measured, at 930 K, along the (xi00), (xixi0), and (xixixi) symmetry directions. Along the (xi00) symmetry direction, the frequencies of the longitudinal curve are higher than those of the transverse branch, whereas in bcc Ba, the relative ordering of these branches is reversed. This result is consistent with the assumption that the anomalous behavior of the (xi00) dispersion curves in bcc Ba is due to the hybridization of the free-electron-like states with the d bands. The data were used to evaluate the elastic constants, the phonon density of states, and the lattice specific heat of bcc Sr.