Isabel van Herven (ca. 1820 - 4 July 1902) was a Brunanter adventurer, known for her mountaineering exploits. Van Herven made the first ascent and descent of Newell Peak (formally named Herven-Newell Peak) and further conquered the Drakenberg and Raspenberg peaks in the 1850s, the first woman to do so.
Van Herven notably climbed Mont Blanc in France and Triglav in Slovenia as well.
At her death, she left a trust of some 920.000 thalers (some 60,000 British pounds) to further mountaineering in the country, helping to found the Alpine Club of Brunant.