(Exact steps may vary slightly depending on manufacturer and Android version)
Open the Settings app.
Tap About phone (sometimes under System or General Management).
Tap Status or Hardware information.
Look for Wi-Fi MAC address.
Open the Settings app.
Tap General > About.
Scroll down to find Wi-Fi Address — this is your MAC address..
Modern phones often use Private (Randomized) MAC Addresses for Wi-Fi networks:
To see the real hardware MAC address, check in the system info as above.
To find the MAC address used for a specific Wi-Fi network, go to:
Settings > Wi-Fi
Tap the network you're connected to
Look for Private Wi-Fi Address (iOS) or MAC address (Android).