Tribhuvandas Purushottamdas Luhar, better known by his pen name Sundaram, (22 March 1908 – 13 January 1991), was a Gujarati poet and author from India.

He started writing poetry in 1926 under pen name, Marichi and Ekansh De was his first poem followed by more poems under pen name, Vishwakarma. He published his poem Bardoline in 1928 under pen name, Sundaram and adopted it for lifetime.

Koya Bhagatni Kadvi Vaani ane Garibo na Geeto (1933) was his first poetry collection followed by Kavyamangala (1933). He published another collection Vasudha (1939) and the collection of children’s poetry, Rang Rang Vadaliya (1939). His Yatra (1951) is influenced by the philosophy of Aurobindo.