What does Yanni mean?
Yanni \ya(n)-ni\ as a name for boys is of Hebrew and Greek derivation, and the name Yanni means "God is gracious". Yanni is a variant of John (Hebrew). Yanni is also a variant of Yannis (Greek, Hebrew).
Yanni has 27 more different forms via John, Yannis: Ean▼, Gianni▲, Giannis, Hannes, Hanno, Hans▼, Hansl, Heanno, Iain, Ian▲, Ioannis, Ivann, Jan▼, Jancsi, Janek, Janko, Janne, Janos, Jianni, Jonnie, Jovanni▼, Seann, Vanek, Vanko, Vanya, Yannakis and Zane▲.
Yanni is an uncommon first name for males but a very popular last name for all people (#24969 out of 88799, Top 28%). (2000 U.S. Census)
John (#26 a year ago), Ian (#77), Zane (#224), Gianni (#515), Jovanni (#943), Ean (#997), Jonnie, Jan, Hans, Iain and Hannes are the popular related forms of Yanni (#unlisted) ranked in the Top 1000. These boy names were at the height of their popularity in the year 2006 and are somewhat less popular today, with the forms Ean, Jovanni, Hans and Jan becoming less in vogue. Gianni (#515), Zane (#224) and Ian (#77) are three of the more fashionable names for newborns among these. Shown below is a comparison of the popularity of the boy name Yanni and related names. (2014 Birth Statistics)