  We present five candidate gravitational lenses discovered spectroscopically
in the Canadian Network for Observational Cosmology Field Galaxy Redshift
Survey (CNOC2), along with one found in followup observations. Each has a
secure redshift based on several features, plus a discrepant emission line
which does not match any known or plausible feature and is visible in multiple
direct spectral images. We identify these lines as Lyman-alpha or [OII]
emission from galaxies lensed by, or projected onto, the CNOC2 target galaxies.
Einstein radii estimated from the candidate deflector galaxy luminosities
indicate that for two candidates the lines are probably [OII] from projected
z<1 galaxies (consistent with the detection of H-beta as well as [OII] in one
of them), but that in the remaining four cases the lines could be Ly-alpha from
lensed z>3 galaxies. We estimate that only 1.9+-0.7 [OII]-emitting galaxies are
expected to project onto target galaxies in the original CNOC2 sample,
consistent with three or four of the six candidates being true gravitational
lenses.
