There are 48 3-letter words that start with 'o'.
| oaf | oak | oar | oat | oba |
| obe | obi | oca | oda | odd |
| ode | ods | oes | off | oxo |
| oxy | oft | ohm | oho | ohs |
| oil | oka | oke | old | ole |
| oms | one | ono | ons | ooh |
| oot | ope | ops | opt | ora |
| orb | orc | ore | ors | ort |
| ose | oud | our | out | ova |
| owe | owl | own | ||
Note: These 48 3-letter words that start with 'o' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with ov, ou, or, ob, op, os, oc, ox, ol, on, of, om, od, oo, ot, oi, oa, oe, og, oz, ow, oy, ok, oh, oq.
2-letter words start with 'o' (13)