Alyn may refer to:
- Alyn - A guard in service of House Stark.
- Alyn Blackwood - Fifth son of Lord Tytos Blackwood.
- Alyn Connington - Former Lord Commander of the Kingsguard. Known as the Pale Griffin.
- Alyn Marbrand - Father-in-Law of Lord Tytos Lannister.
- Alyn Orkwood - Head of House Orkwood.
- Alyn Stackspear - Second son of Lord Selmond Stackspear.
- Alyn Stokeworth - Hand of the King to King Aenys I Targaryen.
- Alyn Tarbeck - Former head of House Tarbeck.