Baby Names Boy Names Meaning of the Name Sionn Updated January 15, 2026 by Jennifer M. Sionn Gender: Male Origin: Irish Meaning: Fox ♥ Add to my Namelist What is the meaning of the name Sionn? The name Sionn is primarily a male name of Irish origin that means Fox. Pronounced "Shoon"People who like the name Sionn also like: Faolan, Saeran, Finn, Crevan, Liam, Rian, Aidan, Siofra, Dympna, Siobhan, Aurora, Aislin, Roisin, Bryna Names like Sionn: Suni, Shaimaa, Shenna, Suna, Sona, Sachin, Sekani, Shahin, Shena, Sen, Susanna, Shawano, Senen, Susan, Sienna, Swain, Sasson, Soma, Sheena, Sumiye, Shannon, Senona, Shahan, Shannen, Simona, Sagen, Suman, Sanna, Sweeney, Shanae Stats for the Name Sionn Sionn is currently not in the top 100 on the Baby Names Popularity Charts Sionn is currently not ranked in U.S. births