The Newark Adriatics, also known as the Adriatic Base Ball Club of Newark, was a member of the National Association of Base Ball Players before the American Civil War. The Adriatics first played another member in September 1857 and joined the NABBP for the 1858 to 1861 seasons.
For 1857, the game with the Union club of Morrisania, now in the Bronx, is the only listed match versus a non-member club (Adriatic), and the only listed match versus a club outside modern New York City. Only that spring, sixteen clubs within modern New York had convened for the first time, which was later recognized as initiating the Association.