Anna Althea Hills (January 28, 1882 – June 13, 1930) was an American plein air painter who specialized in impressionist landscapes of the Southern California coast.

Hills traveled in Holland and England, attended the Academie Julian and studied with John Noble Barlow.

After returning to the United States, Hills traveled to the west coast and she switched from interior figures to impressionist landscapes.

Hills settled in Laguna Beach, California where she opened a studio and taught.

[4] In addition, Hills urged her friend, the respected artist and critic Jennie V. Cannon, to create at her summer home in Carmel-by-the-Sea a similar organization and art gallery, which was eventually founded in 1927 as the Carmel Art Association and adopted verbatim the Laguna Beach preamble: “To advance the knowledge of and interest in art; to create a spirit of co-operation and fellowship between painter and public.”[5] Two years earlier Hills had been honored with a reception in Carmel.