Lamberto E. Antonio is a Filipino writer. Opposite Mario O'Hara, he co-wrote the screenplay for Lino Brocka's film Insiang (1976), the first Philippine film to be shown at the Cannes Film Festival in 1978. He is the author of several critically acclaimed books—Hagkis ng Talahib (1971), Pagsalubong sa Habagat (1986 National Book Award for Poetry), and Pingkian at Apat Pang Aklat Ng Tunggalian (1997 National Book Award for Poetry). A Palanca awardee 10 times over, he has also won the grand prize for the Epic Narrative in the Cultural Center of the Philippines Literary Competition and was hailed Makata ng Taon by the Surian ng Wikang Pambansa. He also received the Gawad Manuel L. Quezon and Pambansang Alagad ni Balagtas.