The first USS Avalon was a United States Navy patrol vessel acquired in 1917 but possibly never commissioned.

In 1917, the U.S. Navy inspected Avalon for possible naval service during World War I.

On 19 May 1917 officials of the 3rd Naval District took control of her for use as a section patrol boat.

Avalon's name was placed on the Navy List, but she never received a section patrol (SP) number and no records have been found showing her to have been commissioned or describing any naval service by Avalon.

This article about a specific ship or boat of the United States Armed Forces is a stub.