Find saved Wi-Fi password on iPad

Assuming that your iPad is running iPadOS16 or later, you can easily find your WiFi Passwords from iPad settings:

Settings > WiFi

At top-right of the WiFi settings page, tap the Edit button to expose a list of all the WiFi networks that your devices have stored in your Keychain. Tap the associated blue “i” icon to see the WiFi connection properties; tap the Password field to reveal the WiFi network Password.

Additional information can be found here:

Find your saved Wi-Fi passwords on iPhone or iPad - Apple Support

For iOS/iPadOS15 or earlier, you cannot see stored WiFi Passwords - unless you have manually stored them elsewhere.

See this article.

If you need help with your Wi‑Fi password - Apple Support