Al-Fiqh al-Akbar (Arabic: الفقه الأكبر) or "The Greater Knowledge" is a popular early Islamic text attributed to the Muslim jurist Abu Hanifa.

[1] It outlines the foundational articles of the Sunni faith whilst refuting the beliefs of those groups that were considered to be outside orthodox or mainstream Islam, namely the Muʿtazila, Qadariyah and Khawarij amongst others.

Thereafter, it elaborates on how one acquires true faith (iman) or enters into a state of unbelief (kufr) after coming into this world.

In refuting its theological adversaries—the Muʿtazila, the Kharajites, and others—the text argues that the believer does not leave Islam by committing sins.

Although the author follows a particular order in the text, he sometimes repeats certain points already mentioned for emphasis; for instance, because of the Qur'an's weighty importance, he asserts several times that the eternal speech of Allah is unlike the created words of human beings.