MONTARGIS, an arrondissement of the department of the Loir-et-Cher, in France. It is 671 square miles in extent, is divided into seven cantons and ninety-five communes, and contains 62,500 inhabitants. The capital is the city of the same name. It stands on a hill at whose feet is the river Loing and the canal of Briare; adjoining is the forest of Montargis. It contains 1240 houses, and 6500 inhabitants, who are employed in making cloth, paper, and cutlery. Long. 2. 38. 33. E. Lat. 47. 39. 58. N.