There are multiple origins and meanings for the name Rabindranath:
1. Bengali name, combination of the proper nouns Ravi - "sun" + Indranath - "bent by Indra"
2. Form of the given name Ravinandan - "son of the Sun (Ravi)"
Rabindranath Tagore (7/5/1861 - 7/8/1941) - Indian writer, poet, composer, artist, social activist.