Arlenis Sosa Peña (born May 7, 1989) is a Dominican model. She is the current spokesmodel for Lancôme and appeared in the 2008 Victoria's Secret Fashion Show. She married professional basketball player Donnie McGrath in a beachside wedding in punta Cana, Dominican Republic in 2015.
Sosa was born in Copey, a district of Pepillo Salcedo in Monte Cristi Province, Dominican Republic. She received her primary and secondary education at the Evangelical College Simon Bolivar in the city of Dajabón. When she was 16, Sosa intended to further her education in communication studies in Santo Domingo, but while walking in Copey with her family, designer Luis Menieur, her mother's agent, spotted her. He complimented Sosa and told her she could be a model in New York.