Walder may refer to:
- Lord Walder Frey - The aged Lord of the Twins.
- Black Walder Frey - The second son of Ryman Frey and an unknown woman. Named for his dark temper.
- Little Walder Frey - The only son of Merrett Frey and Mariya Darry.
- Big Walder Frey - The eldest son of Jammos Frey and Sallei Paege.
- Walder Frey - The youngest son of Emmon Frey and Genna Lannister.
- Walder Haigh - Son of Ser Harys Haigh.
- Walder Rivers - Bastard son of Lord Walder Frey.
- Walder - Stableboy in service to House Stark of Winterfell. Better known as Hodor.
Walda may refer to: