Libis Andres Arenas Murillo (born 12 May 1987 in Ismina) is a Colombian football (soccer) goalkeeper for the Colombia national under-20 football team.
He started his career with Envigado Futbol Club. S.S. Lazio then made a deal to buy him, but did not include him in the first team in order not to fill a non-EU spot in the squad. He was on loan to Envigado in January 2007Tuttomercatoweb.it. He had also been on trial to Sporting Clube de Portugal in early 2007.
He was sold to Merida UD and loaned to Central Espanol. .
He is the third Colombian 2005 U-20 World Cup player following Abel Aguilar and Cristian Zapata to be signed by an Italian club.