Baby Names Girl Names Meaning of the Name Tanwen Updated January 15, 2026 by Jennifer M. Tanwen Gender: Female Origin: Welsh Meaning: White Fire #Fire ♥ Add to my Namelist What is the meaning of the name Tanwen? The name Tanwen is primarily a female name of Welsh origin that means White Fire. People who like the name Tanwen also like: Branwen, Talaith, Cosette, Seren, Genevieve, Rhoswen, Terrwyn, Declan, Liam, Eirwyn, Oliver, Aidan, Lucian, Soren Names like Tanwen: Teom, Tuan, Taiyanna, Tumaini, Tamma, Thuan, Tonia, Tayden, Tuana, Thane, Timea, Tatiana, Tythan, Tahan, Tina, Thanh, Tanaya, Titania, Tenen, Tuomo, Tymon, Thameena, Tien, Tomoya, Tam, Timeo, Tynan, Tomi, Tommen, Toni Stats for the Name Tanwen Tanwen is currently not in the top 100 on the Baby Names Popularity Charts Tanwen is currently not ranked in U.S. births