Scarlett. Scarlett is a name of English origins. The meaning of Scarlett is red. Common spelling variations include Scarlet and Scarlette. Scarlett is a popular name and was girl name #42 in 2013 per the Social Security Administration.In addition, the variation Scarlet was #370 and Scarlette was #874.carlett is a name of English origins. The meaning of Scarlett is red. Common spelling variations include Scarlet and Scarlette.