Alfonseca

Alfonseca is a Spanish surname. Notable people with the surname include:


 * Antonio Alfonseca (b. 1972), Dominican baseball pitcher
 * Juan Bautista Alfonseca (1810–1875), Dominican military officer and composer
 * Manuel Alfonseca (b. 1946), Spanish writer and university professor
 * Rosa María Alfonseca (b. 1953), Mexican graphic artist