This is the standard longbow in Dragon Age: Origins.

Acquisition

• This generic longbow can be found as a random treasure throughout the game.
• Sold by Barlin in Dane's Refuge at Lothering.
• Can be found in the stock of the Quartermaster at Ostagar provided that the Warden asks for his "other goods".
• Sold by Bodahn Feddic at the Redcliffe Castle.
• It is also sold by Mikhael Dryden at Soldier's Peak. It requires the Warden's Keep DLC.
• The Bartender in the Crown and Lion is selling this longbow.
• It is also sold by Yuriah in the Vigil's Keep - Throne Room.
• Tamlen starts in the Dalish Elf Origin with this longbow equipped.