Oscar Jorge Del Solar Villarroel is a Chilean football manager.
Del Solar has coached a number of Chilean teams, including Deportes Concepción, Audax Italiano and Rangers de Talca. He coached the Lanús reserves and Tiro Federal in Argentina, Alianza FC of El Salvador and Rampla Juniors of Uruguay.
His last club was Deportes Concepción from 2021 to 2022.
In late 2025, Del Solar joined the technical staff of Lucas Barrios as an assistant coach for Paraguayan club Sportivo Luqueño.