Phnom (), occasionally transliterated as Phnum, is a Khmer word that means 'hill' or 'mountain'. It may refer to:
Geography Phnom Penh, capital of Cambodia Phnom Aural Phnom Aural Wildlife Sanctuary Phnom Bakheng Phnom Bok Phnom Chhnork Phnom Da Phnom Dei Phnom Dei Commune Phnom Doh Kromom Phnom Kmoch Phnom Kong Rei Phnom Krom Phnom Krom railway Prasat Phnom Krom Phnom Kulen Phnom Kulen National Park Phnom Malai Phnom Nam Lyr Phnom Nam Lyr Wildlife Sanctuary Phnom Samkos Phnom Samkos Wildlife Sanctuary Killing caves of Phnom Sampeau Phnom Sampov Phnom Santuk Phnom Sorsia Phnom Srok (town) Phnom Srok district Phnom Sruoch District Phnom Tamao Wildlife Rescue Centre Phnom Tumpor Phnom Voar Wat Ek Phnom