Is a pipe organ a wind instrument?

Yes, an organ is really a big wind instrument. What you hear is the result of blowing air (wind) through pipes.

Technically, you could say that a pipe organ is a woodwind instrument. A woodwind instrument is an instrument where air is blowing through the instrument. However, an organ differs in many ways from other woodwinds, so many musicians think it belongs in another category.

If you want to learn more about the wind system in pipe organ, then we reffer you to Wikipedia. There you will find a great schematically animation of a mechanical-action windchest with three ranks of pipes.

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