SAN LUCAR, a town of Spain in the province and 17 miles N. of Cadiz, in a bare, sandy, undulating country, on the left bank of the Guadalquivir, not far from its mouth. It stands partly on the flat bank of the river, and partly on the rising ground behind; its white glittering houses rising one above the other, up to an old Moorish castle on the summit. There are here 3 churches, 4 hospitals, one of them founded by Henry VIII. for English sailors, and the deserted buildings of several suppressed convents. The place is, however, dull and lifeless; having fallen off very much from its ancient commercial importance. It is now chiefly dependent on the wine trade, and is the mart of the inferior vintages sent to England as sherry. Many of the people are also employed in agriculture and fishing. The climate is hot, but not unhealthy. It was from San Lucar, in 1519, that the first voyage round the globe was begun by Magellan, who never returned, having been slain by the savages of the Philippines. Pop. 16,561.