See also the related category hebrew.
Iahn is uncommon as a baby boy name. It is not in the top 1000 names. In 2018, within the family of boy names directly related to Iahn, Ian was the most widely used.
Baby names that sound like Iahn include Iain (Scottish and English), Iane, Iann (English and Scottish), Iaen, Iaine, Iayn, Ihsin, Iin, Imam (Arabic), Iman (Arabic and Urdu), Inah, Ine, Inna, Eamonn (English and Irish), Iaene, Iaon (Welsh), Imani, Effeom, Ewon, and Ioane.
† approx English pronunciation for Iahn: IY as in "eat (IY.T)" ; AE as in "at (AE.T)" ; N as in "knee (N.IY)"