Of Greek origin.

A masculine and feminine name too.

As a masculine name, Sandy is a diminutive of the name Alexander.

It is rarely used as a short for Santiago.

As a feminine name, it’s a diminutive of the name Alexandra or Sandra.

Male variants are: Sandey, Alex, Sacha, Alexandros, Xander, Alec, Alister, etc.

Female variants are: Sandie, Ally, Sandra, Alexa, Alexandra, Alessandra, Lexie, Alejandra, etc.

Famous male bearers are Sandy Winton, Sandy Beales, Sandy Koufax, Sandy Lyle.

Famous female bearers are Sandy Denny, Sandy Lima, Sandy Mölling.