Brittainy \b-rittai-ny, br(it)-tainy\ as a girl's name is a variant of Brittany (Latin), and the meaning of Brittainy is "from Brittany or Great Britain".

The baby name Brittainy sounds like Brittiny and Brittainny. Other similar baby names are Brettany, Brittini, Brittanya, Bryttany, Brittony, Brittny, Brittlin, Brittiney, Brittine, Brittina, Brittin, Brittiany, Britteny, Brittann, Brittani, Brittaney, Brittane, Brittana, Brittan, Brittamy, Britanny and Britany.