Ballynahinch Junction railway station was on the Belfast and County Down Railway which ran from Belfast to Newcastle, County Down in Northern Ireland. The railway split off from the Belfast and County Down Railway onto the B&CDR Ballynahinch Branch ending at Ballynahinch station.

The station was opened by the Belfast and County Down Railway on 10 September 1858.

The station closed to passengers on 16 January 1950, by which time it had been taken over by the Ulster Transport Authority.

Preceding station	Historical railways			Following station
Saintfield		Belfast and County Down Railway Belfast-Newcastle		Crossgar
Saintfield		Belfast and County Down Railway Belfast-Ballynahinch		Creevyargon Halt

• Butt, R. V. J. (October 1995). The Directory of Railway Stations: details every public and private passenger station, halt, platform and stopping place, past and present (1st ed.). Sparkford: Patrick Stephens Ltd. ISBN 978-1-85260-508-7. OCLC 60251199. OL 11956311M.
• Jowett, Alan (March 1989). Jowett's Railway Atlas of Great Britain and Ireland: From Pre-Grouping to the Present Day (1st ed.). Sparkford: Patrick Stephens Ltd. ISBN 978-1-85260-086-0. OCLC 22311137.
• Jowett, Alan (2000). Jowett's Nationalised Railway Atlas (1st ed.). Penryn, Cornwall: Atlantic Transport Publishers. ISBN 978-0-906899-99-1. OCLC 228266687.

54°25′36″N 5°49′17″W / 54.42667°N 5.821295°W / 54.42667; -5.821295