Abstract: A gas-liquid separator for a well pump includes a stationary helical baffle disposed in a tubular housing for separating gas from liquid and conducting gas through a center conduit disposed in the housing to a tubing string in communication with the separator or into the well annulus for flow to the surface. The baffle may be interposed in a conventional downhole submersible pump between the motor section and the pump section and the pump section may be modified to have a hollow impeller drive shaft for conducting gas separated by the separator through the pump section and out of gas discharge ports in the pump section housing. In an alternate embodiment gas is discharged from the hollow drive shaft into the tubing string and liquid separated from the gas is pumped through the pump section and out into the wellbore annulus.