Millrift is an unincorporated community that is located in Westfall Township in Pike County, Pennsylvania, United States.

Situated at the intersection of Delaware Drive and Bluestone Boulevard, on the west bank of the Delaware River, northwest of Matamoras,[2] Millrift was settled by James Sawyer, who moved his family from Orange County, New York.

The location was where Bush Kill meets the Delaware River, and eventually became known as Saw-Mill Rift.

The Erie Railroad established a crossover for passing trains at the location and nicknamed it Turnover.

The United States Postal Service opened a station there in 1884 under the current name of Mill Rift.