The Gross Motor Function Measure (GMFM) and computerized gait analysis are commonly used to assess patients with cerebral palsy (CP). The authors investigated correlations between the GMFM and gait parameters in 32 children aged 3 to 18 (mean 8.9) years with spastic CP. Of the gait parameters, cadence and normalized velocity correlated most strongly with the GMFM score, and hip knee excursion and percentage single support also correlated directly with the GMFM. In a stepwise multiple regression, cadence alone was a significant predictor of GMFM score. Time and distance parameters, hip and knee excursion in sagittal plane and GMFM value all moved consistently further from pediatric norms as functional severity increased. The study confirms that gait is representative of general motor status in CP and that the GMFM and gait analysis are complementary measures in the functional assessment of these children.