Not to be confused with O. There are multiple versions of the Oh Henry! The manufacturer Nestlé says that the most sold candy bar was introduced by George Williamson and his Williamson Candy Company of Chicago in 1920 in United States.
There are other alternate accounts of the origin of the name of the bar. The story supported by Nestlé is that there was a boy named Henry who frequented George Williamson’s second candy shop. He became a favorite of the young girls who worked there, who would say “Oh Henry” when speaking to or about him, and Williamson used this phrase to name his new confection. Tom Henry Bar to Oh Henry! The Williamson Company was sold to Warner-Lambert in 1965, which soon sold Oh Henry! Nestlé acquired the United States rights to the brand from Terson in 1984. In 2018, Nestlé sold the rights to its U.