Cerro Oncol

{{short description|Mountain in Chile}}

{{No footnotes|date=April 2025}}

{{Infobox mountain

| name = Cerro Oncol

| photo = Cerro Oncol-lluvia.jpg

| photo_caption = View of the forests around Cerro Oncol

| elevation_m = 715

| elevation_ref =

| prominence_m = 715

| prominence_ref =

| map = Chile

| map_caption =

| map_size = 175

| label_position = left

| listing =

| location = Chile

| range = Cordillera de Oncol

| coordinates = {{coord|39|40|S|73|17|W|type:mountain_region:CL_scale:100000|format=dms|display=inline,title}}

| range_coordinates =

| coordinates_ref =

| topo =

| type =

| age =

| last_eruption =

| first_ascent =

| easiest_route =

}}

Cerro Oncol is a mountain located in the Cordillera de Oncol, Chile. At 715 m it is the highest peak of the Chilean Coast Range between the Cordillera de Nahuelbuta and Corral Bay. Cerro Oncol and its surroundings are located inside Oncol Park.