Eurema regularis, the Even-bordered Grass Yellow and Regular Grass Yellow, is a butterfly in the Pieridae family. It is found in Senegal, Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Nigeria, the Republic of Congo, Angola, the Democratic Republic of Congo, Ethiopia, Rwanda, Burundi, Kenya to Zambia, eastern Zimbabwe and western Mozambique. The habitat consists of woodland and forest margins.Adults are on wing year round.