[3] Several theories have been woven and advanced to explain the origin of the now famous municipality of Dinas, which had been the cradle of Islamic Culture and civilization and the bulwark of anti-Hispanic colonization of the entire Baganian Peninsula in Zamboanga del Sur.

According to ancient history which has been accepted and educated by the scions of the great grand Sultan Kudarat, a descendants of the renowned Shariff Kabungsuan of Maguindanao was that the name Dinas was taken from a Maguindanaon term Di Nas where "Di" means "Not" and "Nas" means "Bad Luck or Unlucky".

Hence, the early settlers who migrated from the province of Cotabato found their new haven as not unlucky or "Di Nas" because the mouths of all rivers emptying into the coastlines are facing East which according to their belief is a sign of good luck.

The most popular legend handed down to this generation is that Dinas got its name by coincidence as a result of communication gap between a native and foreigner.

Within the community, there was only one sari-sari store wherein household necessities being supplied by the Chinese traders, who frequently visited the place from Zamboanga City.