Joseph Warren Ray (May 25, 1849 – September 15, 1928) was a Republican member of the U.S. House of Representatives from Pennsylvania.
Joseph W. Ray was born near Nineveh, Pennsylvania.
He studied law, was admitted to the bar in 1876 and commenced practice in Waynesburg.
He was elected president judge of the thirteenth judicial district of Pennsylvania in 1915 and served until 1926.
He declined to be a candidate for reelection, and again resumed the practice of law in Waynesburg, where he died in 1928.