a town of France, in the department of Nord, 6 miles N.E. of Lille. It is well and regularly built, though it has no striking public buildings. Its chief importance is derived from the manufactures that are carried on here, especially those of cotton goods, for which it is second only to Lille among the towns in the department. Besides these, woollen articles, table-linen, furniture, leather, &c., are made, and dyeing is also carried on. The trade of the place is very considerable, not only in these manufactured articles, but in corn, wine, and colonial produce. Roubaix is the seat of a court of commerce and a council of prud'hommes. Pop. 31,038.