Vetter Mountain

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| location = Angeles National Forest, Los Angeles County, California, U. S.
| map = USA California
| map caption = Location in California
| map size = 220
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| topo = USGS Chilao Flat
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| easiest route = Forest road 3Na6

Vetter Mountain is located in the San Gabriel Mountains and within the Angeles National Forest, Los Angeles County, California, United States. Elevation 5911 feet (1802 m) feet. Named by USFS surveyor Don McLain (c. 1933) for Victor P. Vetter (nd. ), a dedicated forest ranger and fire dispatcher. Vetter won the USFS Bissell Medal for outstanding work in forest conservation (1930). The Silver Moccasin Trail crosses the mountain on its eastern slopes.

Vetter Mountain is the site of historic Vetter Mountain fire lookout tower, a ground mounted BC 3 type cab. The lookout tower was built in 1937 and remained in service until 1981. Ramona Merwin, a USFS fire lookout staffed the tower from 1953 until its closing. The tower was slated to be moved to the Chilao Visitors Center, but a group of active citizens in cooperation with the Forest Service were able to rebuild, restore, and return the tower to operational service in 1998. The tower was operated by the Angeles National Forest Fire Lookout Association (ANFFLA) citizen volunteers in cooperation with the USDA Forest Service until it was destroyed on August 31, 2009, by the Station Fire. In the years since the fire, the volunteers have been manning a temporary lookout at the base of the steps to the original lookout, keeping watch over the forest. The Angeles National Forest Fire Lookout Association (ANFFLA) volunteers began the rebuilding of the fire lookout on July 12, 2014, with a "bucket brigade," pouring a new concrete pad on which to build a new lookout structure, using the original 1930s historic design. Construction was completed in 2020. The lookout overlooks several segments of the Angeles Crest Highway, and has a clear view of Mount Wilson to the south, and Mount Pacifico to the north.