What horns are related french horn?

The instruments closely related to the French horn include:

- Natural (valveless) horn

- Wiener horn

- English horn or cor anglaise (an orchestral woodwind instrument)

- Alto horn

- Mellophone

- Bass horn

- Helicon

- Hunting/Parforce horn

- Posthorn

- Baritone horn

- Euphonium

- Tuba

These are all brass instruments that have a similar shape, sound production, and playing technique to the French horn.