Sidi Ahmed al-Rgibi

Sidi Ahmed al-Rgibi (also Er Reguibi and other spellings) was a Sahrawi Islamic preacher and political leader in the tribal areas of the north-western Sahara desert in the 16th century. He was considered a holy man, and his shrine, located in the northern Saguia el Hamra region of Western Sahara, is still visited every year by thousands of visitors.

He is the founder of the Reguibat, the largest and most powerful , whose areas extended from Western Sahara into modern-day Mauritania, Morocco and Algeria.