Pregnancy , Baby Names 20 Original Baby Names Beginning With The Letter O O is for...Original. Whether you are looking for something with Irish, Spanish or Sanskrit origins, there is something on this list for you. 10 Original Baby Boy Names Beginning With The Letter O 10 Original Baby Girl Names Beginning With The Letter O Click here for more Baby Name inspiration Love this? Share, share, share ! Check us out on Facebook, Twitter, Instagram, Pinterest and our brand new Snapchat is eumom_ie. About the Author Jenny Sherlock is a working mom of three children, aged 9, 5 and the youngest arrived in January this year. She is a civil servant and a freelance writer. She enjoys art, reading, music and good food. She gives an honest account of the rollercoaster that is parenting, warts and all! Check out her blog seriouslymammy.wordpress.com for more! Comments Please login to leave a comment.