Robert Morris Yardley (October 9, 1850 – December 9, 1902) was a Republican member of the U.S. House of Representatives from Pennsylvania.

He attended public and private schools in Yardley and Doylestown, Pennsylvania.

He studied law, was admitted to the bar in 1872 and commenced practice in Doylestown.

He served as chairman of the United States House Committee on Expenditures in the Department of War during the Fifty-first Congress.

He served as a member of the Doylestown School Board and as the director of several financial and public service corporations.