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This is a list of rivers in the United States that have names starting with the letter A. For the main page, which includes links to listings by state, see List of rivers in the United States.

List of rivers of the United States: A

Ab - Al

Aberjona River - Massachusetts

Abiqua Creek - Oregon

Abita River - Louisiana

Acushnet River - Massachusetts

Agawam River - Massachusetts

Agua Fria River - Arizona

Ahnapee River - Wisconsin

Alabama River - Alabama

Alafia River - Florida

Alagnak River - Alaska

Alameda Creek - California

Alamo River - California

Alamosa River - Colorado

Alapaha River - Georgia, Florida

Alatna River - Alaska

Albion River - California

Alcovy River - Georgia

Alexander Creek - Alaska

Aliso Creek (Los Angeles County) - California

Aliso Creek (Orange County) - California

Allagash River - Maine

Allegheny River - Pennsylvania, New York

Alligator River - North Carolina

Alsea River - Oregon

Alsek River - Alaska

Altamaha River - Georgia

Alum Creek - Ohio

Am - An

Amargosa River - California, Nevada

American Fork - Utah

American River - California

American River - Washington

Americano Creek - California

Amite River - Mississippi, Louisiana

Ammonoosuc River - New Hampshire

Amnicon River - Wisconsin

Anacostia River - Maryland, District of Columbia

Anahulu River - Hawaii

Anaktuvuk River - Alaska

Anclote River - Florida

Anderson River - Indiana

Andreafsky River - Alaska

Androscoggin River - New Hampshire, Maine

Angelina River - Texas

Aniak River - Alaska

Aniakchak River - Alaska

Animas River - Colorado, New Mexico

Anna River - Michigan

Annaquatucket River - Rhode Island

Annisquam River - Massachusetts

Antietam Creek - Pennsylvania, Maryland

Antoine Creek - Louisiana

Antoine River - Arkansas

Anvik River - Alaska

Ap - Ar

Apalachicola River - Florida

Apple River - Wisconsin, Illinois

Apple River - Wisconsin

Applegate River - Oregon

Appomattox River - Virginia

Appoquinimink River - Delaware

Aransas River - Texas

Ararat River - Virginia, North Carolina

Arikaree River - Colorado, Kansas, Nebraska

Arkansas River - Colorado, Kansas, Oklahoma, Arkansas

Armstrong Creek - Pennsylvania

Armstrong Creek - West Virginia

Arnold Creek - West Virginia

Aroostook River - Maine

Arrow Creek - Montana

Arroyo de en Medio - California

Arroyo Seco - California

Arroyo Trabuco - California

Artichoke River - Minnesota

As - Aw

Ashaway River - Rhode Island

Ashepoo River - South Carolina

Ashippun River - Wisconsin

Ashley River - South Carolina

Ashtabula River - Ohio

Ashuelot River - New Hampshire

Assabet River - Massachusetts

Assonet River - Massachusetts

Atchafalaya River - Louisiana

Au Sable River - Michigan

Aucilla River - Florida

Auglaize River - Ohio

Ausable River - New York

Awuna River - Alaska

A

List of rivers of the United States: A