Five free-ranging mink, Neovison vison mink, from in or near the Fakahatchee Strand Preserve State Park, Collier County, Florida (26°00′N, 81°25′W), were examined for parasitic helminths. Nine species of helminths were identified (2 trematodes, 5 nematodes, and 2 acanthocephalans). The most prevalent parasites were Molineus patens (4 of 5 mink), mean intensity 173 (range, 12–342); Strongyloides sp. (4 of 5), mean intensity 48 (range, 1–170); Macracanthorhynchus ingens (immature) (4 of 5), mean intensity 2.5 (range, 1–4); and Alaria mustelae (3 of 5), mean intensity 59.3 (range, 11–127). Polymorphus brevis and Dirofilaria lutrae are reported from the mink for the first time.