NOGENT SUR SEINE, an arrondissement in the department of the Aube, in France. It is 365 square miles in extent, contains 30,600 inhabitants, and is divided into four cantons, which are subdivided into sixty-nine communes. The capital is the city of the same name, situated on the left bank of the Seine. It contains 750 houses, and 3400 inhabitants, who make some cotton goods and hosiery, but whose chief trade consists in sending wood to Paris. Long. 3. 55. E. Lat. 48. 5. N.