Occidental Avenue S, which begins at Yesler Way in Pioneer Square, is one of those Seattle streets whose names extend into the suburbs. It makes its southernmost appearance at S 197th Street in Des Moines.
It received its name in 1895 as part of the Great Renaming — it had originally been S Second Street. It once had a partner, Oriental Avenue, to the east (originally S Fourth Street), which is today 3rd Avenue S. “Oriental,” of course, means “Eastern,” as “Occidental” means “Western.” (I haven’t been able to determine just when Oriental Avenue became 3rd, but it was last mentioned in The Seattle Times on October 17, 1920.)
And why this particular pairing? The Occidental Hotel, which once overlooked the beginning of Occidental Avenue, is almost certainly the reason, but it’s not spelled out in the ordinance.