Byron Atkins "Barney" Slaughter (October 6, 1884 in Smyrna, Delaware – May 17, 1961 in Philadelphia, Pennsylvania) was a pitcher in Major League Baseball.
He recorded one loss and one save in his career, mostly as a relief pitcher.
After leaving baseball, he was employed by the Pennsylvania Railroad Company, working in the secretary's office for more than 35 years before retiring at the age of 65.
On May 17, 1961, Barney Slaughter died in Philadelphia, at the age of 76 and was interred at Glenwood Memorial Gardens in Broomall, Pennsylvania.
This biographical article relating to an American baseball pitcher born in the 1880s is a stub.