"Variant of Toni"
The name Tonnie is commonly a unisex name from the "English" origin.
Tonnie is a spelling variant of Toni, the short form of Antonia or Antoinette, and it corresponds to Tony, the short form of Anthony. The doubled n and the -ie ending follow the familiar English nickname pattern found in Ronnie from Ronald and Connie from Constance, which is the form Tonnie matches rather than a distinct name with its own root.
Toni means "Praiseworthy".
The pronunciation of Tonnie is TAH-nee.
