The Lar gibbon (which is known as the white handed gibbon in some areas). Currently found from Indonesia, Laos, Malaysia, Myanmar and Thailand. It is also present in the northwest portion of the island of Sumatra. This does give it the largest north south range of any gibbon species. However (as many would expect) that they once had a larger range. Their range historically extended from southwest China to Thailand and Burma. They were also found through the Malay Peninsula in primary and secondary tropical rain forests.  Lar gibbons are likely extinct in China, but if they still exist, they would only be found in southwest Yunnan, their former range.

There are five subspecies of lar gibbon:

• Malaysian lar gibbon (H. l. lar) 15,000-20,000 
• Carpenter’s lar gibbon (H. l. carpenteri)
• Central lar gibbon (H. l. entelloides)
• Sumatran lar gibbon (H. l. vestitus)
• Yunnan lar gibbon (H. l. yunnanensis) (possibly extinct, if not under several 10)