We present infrared photometry of the Galactic Bulge X-ray binary systems GX13+1 and GX17+2 obtained in 1997 July and August using OSIRIS on the 1.8m Perkins Telescope at Lowell Observatory . GX13+1 clearly varies over \sim 0.6 magnitudes in the K -band . Our light curve suggests a modulation on a timescale of \sim 20 days , which is in agreement with previously proposed orbital periods for the system . The IR counterpart of GX17+2 is also variable in the K -band over \sim 0.8 magnitudes on a timescale of days to weeks , extending the variability first seen by Naylor , Charles , & Longmore ( 1991 ) . We discuss the implications our data have for Deutsch et al . ’ s ( 1999 ) identification of “ star A ” as the true IR counterpart of GX17+2 . The variability observed in our photometry of the blend of star A and the foreground star NP Ser implies a \sim 4 magnitude intrinsic variation in the K -band for GX17+2 .