The St John's College Boat Club colours are a white shield with blue cross upon a navy blue background.

The Men's 1st boats race in all-white uniform with blue trim and the 2nd crews compete in all-blue with white trim.

The Women's boats race in all-black with blue trim.

The Boat Club flag consists of a lamb carrying a flag atop a navy blue cross set against a white background.

The symbol of the lamb and flag is that of St John the Baptist, after whom the college was named.