Frank Lonergan was a Republican politician in the U.S. state of Oregon.

A longtime member of the Oregon House of Representatives, he served as speaker for the 1931 regular session of the state legislature.

[1] He became a judge in Multnomah County in 1945[2] He notably oversaw the conviction of district attorney William Langley for failure to prosecute gambling, and ordered him removed from office.

[3] In 1943, in Boston, he was elected the Grand Exalted Ruler of the Benevolent and Protective Order of Elks.

[1] He was a football star, team captain, and class president at Notre Dame University.