Mina is very common in Spanish, it is also the Nickname for Guillermina. My name is Mina and have never been called mean. People actually tell me I am very sweet and my name is great. In Spanish Mina means mine.
-- Anonymous User 8/13/2008
I think Mina is an absolutely beautiful name. And even though it's short for Wilhelmina, I really think it sounds better as a name in its own right. At least, it doesn't have a nickname-y quality to me. I think it's really a nice name.
The name Mina is also used as a short form for Wilhelmina in both Dutch and Limburgish. And not only for Wilhelmina - it is also often a short form for Jacomina (in both languages). [noted -ed]
I believe this is a common Persian name that they use in Iran, I had a friend with the same name and in the language Persian it is MEE-naa, it is also a name not a nickname (in Persian though )