  In supersymmetric models with R-parity violation, sneutrinos may be produced
as s-channel resonances at muon colliders. We demonstrate that, for R-parity
violating couplings as low as 10^-4, sneutrino resonances may be observed and
may be exploited to yield high precision SUSY parameter measurements. The
excellent beam energy resolution of muon colliders may also be used to resolve
MeV level splittings between CP-even and CP-odd sneutrino mass eigenstates.
