Proline is an amino acid.

• Proline (data page)

Proline or Pro-Line may also refer to:

• Proline FC, football club in Uganda

• ProLine (company), an electronics brand

• Pro-Line Racing, a manufacturer of radio-controlled car accessories

• Sport Select, Canadian betting games also known as Pro-Line in some areas

• Proline, a line of prosumer camcorders manufactured by Panasonic

• ProLine, a software package with a Unix-like shell, used to run bulletin board systems on Apple II computers