Obrh Creek (pronounced [ˈoːbəɾx]) is a losing stream that originates and terminates in the Lož Karst Field in the Municipality of Loška Dolina.

The confluence, at which point it is simply named Obrh, lies west of the village of Pudob.

[1] In the northwest, limestone part of the karst field, Obrh Creek starts to drain into many sinkholes, and higher water flows into 850-meter (2,790 ft) Golobina Cave.

The stream re-emerges at the spring of the Stržen River 2 kilometers (1.2 mi) to the northwest on the southeast edge of the Cerknica Karst Field.

The noun is originally a fused prepositional phrase, *ob vьrxъ 'at the summit' (i.e., at the highest point of the watercourse).