Gunvantrai Popatbhai Acharya (9 September 1900 – 25 November 1965) was a Gujarati language novelist and journalist from India.

His Dariyalal (The Beloved Sea, 1934), an adventure novel about seafarers of Gujarat and their settlement in East Africa based on oral history, won him popularity.

His historical novels include Girnarne Khole (1946), Senapati (1947), Gurjarlaxmi (1952), Shridhar Mehta (1957), Karad Kal Jage Part 1 and 2 (1957), Bhoot Rade Bhenkar (1961).

His historical novel series on Vaghela dynasty of Gujarat includes Vishaldev (1960), Arjundev (1961), Idariyo Gadh (1962).

Allabeli (The God is the Protector, 1946),[3] Jogmaya ane Sheelalekh (1949), Akhovan (1957), Maar Raj (1957) are his play collections.

His other works are Hu Bavo ne Mangaldas (1936), Subhashchandra Bose (1946), Munjhavata Prashno (1947), Aapne Fari Na Vichariye ?