Asa William Henry Clapp (born March 6, 1805) was a Democratic politician who represented Maine in the United States House of Representatives during the mid-nineteenth century. Serving as a member of Congress from Maine’s 2nd Congressional District, he held office as a Representative for a single term. His tenure in the national legislature places him among the historical members of Congress from the state of Maine.

Clapp’s service in the U.S. House began on December 6, 1847, and concluded on March 3, 1849. During this period, he sat as a Democratic Representative, reflecting the party alignment noted in the historical record. Although specific committee assignments, legislative initiatives, or additional offices are not documented in the available metadata, his role as a former member of Congress underscores his participation in the federal legislative process at a time of significant political and regional development in the United States.