Language in Kuwait. Arabic is the official language of Kuwait, but English is widely spoken. It is used in business and is a compulsory second language in schools. Among the non-Kuwaiti population, many people speak Farsi, the official language of Iran, or Urdu, the official language of Pakistan. Arabic is spoken by almost 200 million people in more than 22 countries. It is the language of the Qur'an, the Holy Book of Islam, and of Arab poetry and literature.