There are 11 words that start with 'loga'.
| logan | logans | 
| logania | logaoedic | 
| logarithm | loganberry | 
| logaoedics | logarithms | 
| logarithmic | loganberries | 
| logarithmically | |
Note: These 11 words that start with 'loga' are found from the USA & Canada version of the tournament Scrabble word list.