504 King (304 King during overnight periods) is an east–west streetcar route in Toronto, Ontario, Canada. It serves King Street in Downtown Toronto as well as Broadview Avenue on the east end and Roncesvalles Avenue on the west end of the line. The route consists of two overlapping branches: 504A between Line 2 Bloor–Danforth's Dundas West station and Distillery Loop, and 504B between Broadview stationalso on Line 2and Dufferin Gate Loop. The two branches overlap on King Street between Dufferin and Sumach streets, both passing St. Andrew station and King station on subway Line 1 Yonge–University.