The coolest last name on earth. derived from the spanish word "islas" meaning island, which is pretty bad ass. Also associated with tremendous athletic ability.
by bllannke August 13, 2008
Mexican family that came from Guadalajara, Jalisco in Mexico. The name traces its roots to the Spanish word islands. The name was changed from Islas to Yslas in 1904 when our first relative came to the United States. The reason for the changing of the name from an I to a Y was to make it sound more American and Yslas left Mexico after running away with a politically connected Ranchero's soon to be bride.
by JYslas February 03, 2010