There are 11 words that end with 'thon'.
| python | benthon |
| marathon | telethon |
| phonathon | talkathon |
| trilithon | walkathon |
| autochthon | anacoluthon |
| ultramarathon | |
Note: These 11 words that end with 'thon' are found from the USA & Canada version of the tournament Scrabble word list.