Guillermo Durán (Spanish pronunciation: [ɡiˈʝeɾmo ðuˈɾan];[a] born 6 June 1988) is an Argentine tennis player, who specializes in doubles.

He competes mostly on the ATP Challenger Tour.

His highest ATP doubles ranking of world No.

48 was achieved on 23 May 2016 and his highest ATP singles ranking of No.

385 was reached on 2 April 2012.