The Santiago Fire was a wildfire located near Santiago Canyon in Orange County, California, United States, and one of thirty California wildfires of October 2007.

In Foothill Ranch, the Santiago Canyon Estates, and Portola Hills, the fire reached the back yards of houses, but no homes were destroyed in those three neighborhoods.

[1][3] According to Mike Rohde, a battalion chief with the Orange County Fire Authority, controlling the fire depended solely on the wind, saying at the time, "If the wind stays normal, everything will be fine."

"[4] The fire moved into the Cleveland National Forest and crossed the path of the Santa Ana Mountains, singeing the slopes.

[8] A $250,000 reward is offered to anyone with information on the suspected arsonist(s), as the fire has been confirmed as being initiated by arson with two separate points of origin.