Lyman R. Critchfield (May 22, 1831 – November 28, 1917) was a Democratic politician from the state of Ohio.

Lyman R. Critchfield was born May 22, 1831, at Danville, Knox County, Ohio.

He attended public schools and graduated from Ohio Wesleyan University.

[3] In 1887, he was nominated for Supreme Court Judge, but lost to Republican William T. Spear.

[4] Lyman R. Critchfield married Adelaide Margaret Shaffer on October 2, 1854, and had seven children.