Where does “Ramachandran” come from?

Ramachandran is the English form of Sanskrit रामचन्द्र, a proper name combining the elements राम (rāma) and चन्द्र (candra, moon).

Ancestry of “Ramachandran”, step by step

Step	Language	Word	Meaning
1	Tamil	இராமச்சந்திரன்	—
2	Sanskrit	रामचन्द्र	—
3	Sanskrit	चन्द्र	glittering, shining , having the brilliancy or...
4	Proto-Indo-Aryan	(s)ćandrás	—
5	Proto-Indo-Iranian	(s)čandrás	—
6	Proto-Indo-European	(s)kand-	to glow, shine; to shine, glow