Ekenäs Archipelago National Park (Swedish: Ekenäs skärgårds nationalpark, Finnish: Tammisaaren saariston kansallispuisto) is located in the Ekenäs archipelago, in the Uusimaa region of Finland. It was created in 1989 and covers an area of 52 square kilometers (20 square miles). The park is managed by Metsähallitus, which is the Ministry of Forestry.

Most of the park consists of rocky islands near the open sea and the water areas around them. From April 1 to July 17, motorboats are not allowed to land on or use the waters near the most important bird islands to protect nesting birds.

The park can only be reached by boat. Visitors without a boat may use a water taxi to travel there. In recent years, a scheduled ferry service has been added during the summer season, running from Ekenäs harbor to Jussarö, one of the main islands in the park. This service makes it easier for visitors without their own boats to reach the park. Jussarö also provides visitor services, such as small lodging options and a cafe-restaurant.

Ekenäs Archipelago National Park was awarded the European Diploma of Protected Areas on June 19, 1996. The diploma has been renewed and remains valid until June 19, 2031.