Wattwil railway station (German: Bahnhof Wattwil) is a railway station in Wattwil, in the Swiss canton of St. Gallen. It is an intermediate station on the Bodensee–Toggenburg railway, the southern terminus of the Wil–Ebnat-Kappel railway, and the eastern terminus of the Uznach–Wattwil railway (the latter includes the 8.6 kilometres (5.3 mi) long Ricken Tunnel). It is served by local and long-distance trains.

As of the December 2023 timetable change, the following services stop at Wattwil:

• IR Voralpen-Express: hourly service between Lucerne and St. Gallen (via Arth-Goldau and Rapperswil).
• St. Gallen S-Bahn:
  • S2 / S4: half-hourly service to Altstätten SG via St. Gallen and hourly service to Rapperswil, Sargans, and Nesslau-Neu St. Johann.
  • S9: half-hourly service between Wattwil and Wil SG.

Several bus services depart from the station forecourt. Services are provided by Busbetrieb Lichtensteig–Wattwil–Ebnat-Kappel [de] (BLWE), Schneider Busbetriebe [de] and PostAuto Schweiz. The bus lines are as follows:

Line	Route	Operator
622	(Wattwil railway station – Ricken – Gebertingen –) St. Gallenkappel – Eschenbach – Wagen – Kreuz (Jona railway station) – Rapperswil railway station	Schneider Busbetriebe
770	Lichtensteig, Steigrüti – Wattwil railway station – Ulisbach – Ebnat-Kappel railway station – Ebnat-Kappel, Wier	BLWE
780	Wattwil railway station – Heiterswil – Hemberg	PostAuto Schweiz
790	Wattwil railway station – Ebnat-Kappel railway station – Ebnat-Kappel, Gieselbach – Krummenau – Nesslau-Neu St. Johann railway station – Nesslau – Stein SG – Starkenbach SG – Alt St. Johann – Unterwasser – Wildhaus (– Gams – Grabs SG – Buchs SG railway station)	PostAuto Schweiz

• 
  station building (2003)
• 
  signal box (ca. 1990)
• 
  station building (1961)
• 
  Wattwil station (early 20th century)
• 
  Tracks and platforms
• 
  Wattwil bus station next to railway station

• Rail transport in Switzerland

• Media related to Wattwil railway station at Wikimedia Commons
• Wattwil station on SBB