'''Pak Chong''' ({{lang-langx|th|ปากช่อง}}, {{IPA|th|pàːk tɕʰɔ̂ŋ|pron}}; {{lang-langx|tts|ปากช่อง}}, {{IPA-lo|pàːk sɔ̄ŋ|pron}}) is the westernmost district (''[[amphoe]]'') of [[Nakhon Ratchasima province]], northeastern [[Thailand]], and the main point of entry into [[Isan]] as the main road and rail lines cross the [[Dong Phaya Yen Mountains]] into the region. It is a popular tourist destination, especially among weekenders from [[Bangkok]], and is home to many resorts and touristy attractions, in addition to the main entrance into [[Khao Yai National Park]].