David Alegre Biosca (born 6 September 1984) is a Spanish former field hockey player who played as a midfielder for the Spanish national team. Alegre was born in Terrassa and started playing hockey at age four at Club Egara and retired in 2021 at Real Club de Polo. He also played for the Uttar Pradesh Wizards and Oranje Zwart. His older brother Ramón was also a field hockey international for Spain. He played a total of 295 times for the Spanish national team from 2003 until 2021.