Carlos Alonso Bazalar Arostegui (born March 19, 1990, in Lima) is a Peruvian football midfielder. He currently plays for Cienciano.
Bazalar represented Peru at the 2007 FIFA U-17 World Cup in the Republic of Korea, where the Peruvian side reached the quarter finals. He also represented Peru at the 2007 South American Under-17 Football Championship in Ecuador and at the 2009 South American Youth Championship in Venezuela.
Alonso is the son of the Peruvian former footballer Juan Carlos Bazalar.