Hastings Adobe, Historic adobe structure near Collinsville, California, United States.

Hastings Adobe is a ranch dwelling built of adobe bricks, standing about 1.5 miles northeast of Collinsville, California, on the south side of County Road 493. The single structure is in a state of disrepair on private land.

Lansford Hastings, a lawyer and author of The Emigrant's Guide to Oregon and California, erected the adobe as a ranch dwelling. His book promoted the Hastings Cutoff, a route that became a major factor in the Donner Party disaster. The structure was listed on the National Register of Historic Places in 1972.

The adobe takes its name from Lansford Hastings, the lawyer who built it and whose 1845 emigrant guide promoted the Hastings Cutoff. That shortcut was a major factor in the Donner Party disaster. The building is listed on the National Register of Historic Places, designated in 1972.

The adobe stands on private property about 1.5 miles (2.4 km) northeast of Collinsville, on the south side of County Road 493. It is in a state of disrepair and closed to the public, so it can only be seen from outside; no visit inside is possible.

Lansford Hastings, the adobe's builder, wrote The Emigrant's Guide to Oregon and California, whose promotion of the Hastings Cutoff was a major factor in the Donner Party disaster. The house stands about 1.5 miles northeast of Collinsville, on the south side of County Road 493.