Chach is a geographical area, Chach (Attock), in North-West Punjab, Pakistan. Chachi's are referred to those people who originate from this geographical area, Chach. The word Chachi does not mean any caste, creed or clan. Not all chachi's are Pathans, some of whom descend from Kashmiris and Africans, who accompanied the Arabs during the introduction of Islam, to present day Pakistan. Most Chachi's speak Hindko pronounced 'hin ko', which has a close resemblance to Punjabi/Urdu.

There is conflicting theory on whether Pushto or Hindko is the original language of the area, as many Chachi's state that their elders used to speak Pushto. Hindko is widely spoken amongst the settled inhabitants in cities and towns. Pushto is widely spoken in villages (like Nartopa and Ghourgushti) surrounding these towns and cities.

There are some Chach Pathans, who are every bit if not more of a pathan than the Pushto speaking Pathans. They are conservative and firmly hold on to the ideals and notions of Pukthunwali or 'Pathanwalgi' as pronounced in Hindko.

They still maintain their strict code of honour in places like Birmingham and Bradford, England, where there is a large community of Chach Pathans.

This does not mean a player must be a Chachi to play cricket for Chach Cricket Club. Members from all backgrounds are welcome. Players are selected on their merit.