Gardiner is an unincorporated community in Jefferson County, Washington, United States.

Timber in the area was originally cleared in the late 19th century, as was much of Discovery Bay, and was planted with fruit trees – primarily apples and pears.

[3] The spelling was eventually changed to its current form, due to a conflict with another Gardner, Washington; this was needed to enable mail delivery.

Gardiner lost its post office in the 1990s and residents were given mailing addresses in Sequim, Washington.

The community has roughly 300 people, and is located 12 miles (19 km) east of Sequim, just north of U.S. Route 101.