The M. Lloyd Frank Estate, also known as the Frank Manor House, is an historic building on campus of Lewis & Clark College, in Portland, Oregon, United States. It is listed on the National Register of Historic Places.
It was the first architectural commission that Herman Brookman received, having just moved to Portland in 1923 or 1924. The house was completed in 1926 by the McHolland Brothers construction company. The roof is composed of Pennsylvania slate.
On the property, which was , near the conservatory (which was severely damaged in the Columbus Day Storm of 1962), is a metal gate designed by Oscar Bach. Bach designed other metalwork as well. Brookman designed the majority of the estate.