Sofronio G. Calder??n (1878-c1954) was an author from the Philippines, who wrote primarily in tagalog. He was President of the literary society Aklatang Kasilawan, Vice-President of the Tagalog Association (Samahan ng mga M??nanagalog), a member of the literary society Aklatang Bayan which included noted Tagalog writers Lope K. Santos and Jose Corazon de Jesus, honorary member of the Aklatang Barusog, and a member of the University Extension Institute and the Philipphine Academy. His works include: Dating Pilipinas (1907), Diccionario Ingles-Espa?±ol- Tagalog (1915), Tagalog-English Vocabulary and Manual of Conversation (1947), Practical Self-Study of the National Language (with Jos?© G. Katindig) (1947), Mga Alamat ng Pilipinas: Philippine Mithology (1947) and Ang Mga Kawikaan sa Larangan ng Pamumuhay (1947).