There are 17 words that end with 'mma'.
| comma | gumma | mamma |
| lemma | momma | gamma |
| gemma | summa | gramma |
| stemma | digamma | dilemma |
| maremma | analemma | neurilemma |
| sarcolemma | plasmalemma | |
Note: These 17 words that end with 'mma' are found from the USA & Canada version of the tournament Scrabble word list.