Aspidoscelis maslini, also known commonly as Maslin's whiptail, Maslin's racerunner, and in New World Spanish, is a species of lizard in the family Teiidae. The species is endemic to the Yucatán Peninsula.
The specific name, maslini, is in honor of American herpetologist .
Aspidoscelis maslini is native to Mexico (Campeche, Quintana Roo), Guatemala (Petén), and Belize.
Aspidoscelis maslini has been found in a variety of disturbed habitats, at altitudes from sea level to , including beaches, coconut plantations, and roadsides.
Aspidoscelis maslini is oviparous and parthenogenetic.
Aspidoscelis maslini is a member of the Aspidoscelis cozumela species group.