William Nathaniel Bell (1817 - 1887), originally from Illinois and later a resident of Portland, Oregon, was a member of the Denny Party, the first group of white settlers in what is now Seattle. He lived in Seattle from 1851 to 1856 and then again from 1870 till his death.

His family is remembered in the name Belltown, a neighborhood north of Downtown; in Bell Street; in Virginia and Olive Streets, named for two of his daughters; and in Stewart Street, named for Olive's husband Joseph.