Mohammad Ayub Khan (Urdu: محمد ایوب خان), better known as Master Ayub, is a Pakistani educator, philanthropist and civil servant who is known for spending his after-job hours and weekends teaching students in an open-air school in F-6 sector, Islamabad.

[1][4][5] Master Ayub has received the Pride of Performance award for his efforts spanning over 40 years for education in Pakistan.

[2] Ayub, originally belonging to Mandi Bahauddin, is a firefighter with the fire brigade.

[6] Been in Islamabad for 38 years, Ayub is now retired and lives with his wife nearby his open-air school he started and still overlooks.

The school is managed by Crossadder Foundation and run by voluntary teachers and local donations.