Anna Nagar twin arches are ornamental twin arches located in Anna Nagar, Chennai, India. It was built on January 1, 1986 to commemorate the platinum jubilee of the former Chief Minister of Tamil Nadu C. N. Annadurai. Located at the junction of Poonamallee High Road and Anna Nagar Third Avenue, the arches are one of the most prominent landmarks in the city and serve as the entrance of the suburb of Anna Nagar from the southern side.