Pterygoid (/ˈtɛrɪɡɔɪd/; from the Greek for 'winglike') can refer to:
- Pterygoid bone, a bone of the palate of many vertebrates
- Pterygoid processes of the sphenoid bone
- Lateral pterygoid plate
- Medial pterygoid plate
- a muscle such as Lateral pterygoid muscle or Medial pterygoid muscle
- a branch of the Mandibular nerve