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The Zittau–Oybin/Jonsdorf railway, or Zittau–Kurort Oybin/Kurort Jonsdorf narrow-gauge railway (German: Schmalspurbahn Zittau–Kurort Oybin/Kurort Jonsdorf), is a narrow-gaugerailway system employing steam locomotives and serving the mountain health-spa resorts (German: Kurorte) of Oybin and Jonsdorf in the Zittau Mountains in southeast Saxony (Germany). The track gauge is 750 mm (2 ft 5+1⁄2 in).
Gustav W. Ledig: Linie Zittau–Reichenau–Markersdorf in Die schmalspurigen Staatseisenbahnen im Königreiche Sachsen, S. 88 ff., Leipzig 1895. Reprint: Zentralantiquariat der DDR, Leipzig 1987, ISBN3-7463-0070-3
Erich Preuß: Die Zittau–Oybin–Jonsdorfer Eisenbahn. transpress Verlag, Stuttgart 1999, ISBN3-613-71107-9