The Dillon River is a river of the Marlborough Region of New Zealand. It arises in the Inland Kaikoura Range near Carters Saddle, and flows south-west for 28 kilometres to join with the upper Clarence River 20 kilometres northeast of Hanmer Springs. The river's course lies largely parallel with that of the Acheron River, which lies eight kilometres to the west. The river was named after Constantine Augustus Dillon, who owned a sheep run near the Omaka River.
- ^ Peter Dowling (editor) (2004). Reed New Zealand Atlas. Reed Books. Maps 66, 72. ISBN 0-7900-0952-8.
- ^ Discover New Zealand:A Wises Guide (9th ed.). 1994. p. 374.
Coordinates: 42°23′47″S 173°04′42″E / 42.39639°S 173.07833°E