Robert Thaddeus McLoskey (June 26, 1907 – November 2, 1990) was a U.S. Representative from Illinois.

from Monmouth College, Monmouth, Illinois in 1928 and a certificate in mortuary science from Worsham College in Chicago, Illinois in 1932.

He served as a funeral director and later as tax supervisor for Warren County, Illinois from 1935 to 1939 then as a field supervisor for the Illinois Department of Public Health's Bureau of Vital Statistics from 1940 to 1950.

[1] He was an unsuccessful candidate for reelection to the Eighty-ninth Congress in 1964.

He served as chairman of the Warren County, Illinois, planning commission from 1969 to 1972.