List of cantonment board Pakistan are:
=> Balochistan
Khuzdar Cantonment
Loralai Cantonment
Ormara Cantonment
Quetta Cantonment
Zhob Cantonment
=> Khyber Pakhtunkhwa:
Abbottabad Cantonment
Bannu Cantonment
Dera Ismail Khan Cantonment
Kohat Cantonment
Mardan Cantonment
Nowshera Cantonment
Peshawar Cantonment
Risalpur Cantonment
Havelian Cantonment
Kala Bagh/Murree Galies Cantonment
=> Punjab
Attock Cantonment
Sanjwal Cantonment (adjacent to Attock Cantt about 5 KM distance)
Bhawalpur Cantonment
Chaklala Cantonment
Gujranwala Cantonment
Jhelum Cantonment
Kamra Cantonment
Kharian Cantonment
Mangla Cantonment
Multan Cantonment
Murree Hills Cantonment
Okara Cantonment
Rawalpindi Cantonment
Sargodha Cantonment
Shorkot Cantonment (PAF Rafiqui)
Sialkot Cantonment
Taxila Cantonment
Lahore Cantonment
Wah Cantonment
Walton Cantonment (Created out of the southern parts of the original Lahore Cantt.)
=> Sindh
Clifton Cantonment, Karachi
Faisal Cantonment, Karachi
Hyderabad Cantonment
Karachi Cantonment
Korangi Creek Cantonment, Karachi
Malir Cantonment, Karachi
Manora Cantonment, Karachi
Pano Aqil Cantonment
=>Total: 43 Cantonment Boards.
Source: http://civilservice.com.pk/Military-Land-and-Cantonment-Group.html