There are 16 words that start with 'catalo'.
| catalo | catalog | catalos | 
| cataloes | catalogs | cataloged | 
| cataloger | catalogic | catalogue | 
| catalogers | cataloging | catalogued | 
| cataloguer | catalogues | cataloguers | 
| cataloguing | ||
Note: These 16 words that start with 'catalo' are found from the USA & Canada version of the tournament Scrabble word list.