ANDREAS, ST., a market-town on the Danube, in the circle of Pilesch, and palatinate of Pest, in Hungary. It contains one Catholic and seven Greek churches, 1040 houses, and 7980 inhabitants, who trade very extensively in the wine produced in the vicinity. It is also the name of an island in the Danube, opposite to the town, which is fourteen miles in length and one in breadth, and remarkable for its great fertility.