This study examined the effects of aphasia and ideomotor apraxia on conversational gesture. Participants included 8 neurologically normal control participants and 12 participants having aphasia from a single left-hemisphere stroke. Testing included the Western Aphasia Battery (Kertesz, 1982), the Florida Apraxia Battery (Rothi et al., 1992), and scoring of conversational gesture. Statistical findings using a between-group analysis of variance revealed a statistically significant difference in quantity and type of gestures used between experimental and control participants. Within the experimental participants, there was a clear relationship between severity of aphasia and conversational gesture, but not between severity of ideomotor apraxia and conversational gesture. Therefore, severity of aphasia appears to be a better predictor than severity of ideomotor apraxia for the production of spontaneous gesture.