The simple answer is that Issan is the Northeast area of Thailand bordered by Laos and the Mekong in the North and East, Cambodia in the Southeast, the Pratchinburi mountains in the South and Phetchabun mountain range to the North and Central plains. The word Issan comes from the Sanskrit language meaning Northeast.
The harder answer is just why the Northeast region of Thailand is called Issan. You will find many arguments across the internet about royal Lao, Khmer, Chinese, Mon and Thai bloodlines that will leave you even more confused than when you started. The simple version is that a long time ago before Thailand ( Siam ) existed many people inhabited this region from Laos and Cambodia and their descendants are still there to this day. Continue reading “What is Issan?”