Here's a list of boy names starting with o. What you choose to name your newborn boy is one of the most key decisions you will make for him. Names can mean a wide variety of things from honouring family by using ancestral names, to specific qualities in the meaning that you'd like to relate to your little boy, like strong or brave. You may just be looking for a name that sounds great and is easy to say. Meanings and origins have also been provided to assist you in the selection of your perfect baby boys name.