Research was conducted at Iowa State University to evaluate the efficacy of postemergence herbicides on glyphosate-resistant creeping bentgrass and ‘Penncross' creeping bentgrass. Bentgrass sod measuring 10.8-cm in diameter was taken from established putting greens and allowed to acclimate to greenhouse conditions before application of fluazifop-P (0.42 kg ha^-1), foramsulfuron (0.04 kg ha^-1), glufosinate (1.68 kg ha^-1), glyphosate (1.68 kg ha^-1), imazamox (0.05 kg ha^-1), imazapyr (0.84 kg ha^-1), mesotrione (0.34 kg ha^-1), quizalofop (0.09 kg ha^-1), sethoxydim (0.31 kg ha^-1), and sulfosulfuron (0.11 kg ha^-1). Herbicides were applied in a spray chamber using a total spray volume of 187 L ha^-1. Imazapyr resulted in 99% and 100% kill of glyphosate-resistant and 'Penncross' creeping bentgrass 56 days after treatment, respectively. Glufosinate killed greater than 74% of both cultivars 56 days after treatment. Kill of 'Penncross' creeping bentgrass treated with glyphosate was 89% 56 days after treatment, and bentgrass resistant to glyphosate was unaffected. All other herbicides provided some control, but multiple applications would be needed for complete kill.