Haplogroup E-M132, formerly known as E-M33 (E1a), is a human Y-chromosome DNA haplogroup. Along with E-P177, it is one of the two main branches of the older E-P147 paternal clade. E-M132 is divided into two primary sub-branches, E-M44 and E-Z958, with many descendant subclades.

E-M132/E1a has been found in the remains of one Guanche (1/30) from the Canary Islands, and one Bimbape (1/16) from El Hierro that has been dated to the 10th century CE.^[6]

A man from the Koban culture (1/15) of the North Caucasus, which has been dated between the 9th century BCE and the 7th century BCE, carried paternal haplogroup E1a2a1b1b, as well as maternal haplogroup J1b1 or J1c.^[7]

E-M132 is found most often in West Africa, and today it is especially common in the region of Mali. One study has found haplogroup E-M132 Y-chromosomes in as much as 34% (15/44) of a sample of Malian men, including 2/44 E-M44 and 13/44 E-M33/M132(xE-M44).^[8] In particular, the Dogon people of Mali have been found to carry haplogroup E-M132 with a frequency as high as 45.5% (25/55). This makes it perhaps the most common Y-DNA haplogroup in this population, though haplogroup E-P1 appears to be almost equally frequent among the Dogon (24/55 = 43.6%).^[3] Another study has found haplogroup E-M132 in 15.6% (44/282) of a pool of seven samples of various ethnic groups in Guinea-Bissau.^[4]

Haplogroup E-M132 also has been found in samples obtained from Moroccan Berbers, Sahrawis, Burkina Faso (including E-M33/M132(xE-M44) in 2/20 = 10% Fulbe and 2/37 = 5.4% Rimaibe^[2]), northern Cameroon (including E-M44 in 9/17 = 53% Fulbe and E-M33/M132(xE-M44) in 3/15 = 20% Tali^[2]), Senegal (7/139 = 5.0%^[9]), Ghana (1/29 = 3% Ga, 1/32 = 3% Fante^[3]), Sudan (including 5/32 = 15.6% Hausa and 3/26 = 11.5% Fulani^[5]), Egypt (1%^[3]-1.4%^[10]), Calabria (including both Italian and Albanian inhabitants of the region), Shiite Muslims from Lebanon (3/193 = 1.55%),^[11] Syrians (2/202 = 1%),^[12] Druze from Lebanon (5/363 = 1.3%),^[13] Maronites from Lebanon (2/200 = 1%),^[14] an Italian (1/67 = 1.5%) from Trentino in northeastern Italy,^[15] and Romanians from Constanţa.^[16]

E-M132 has also been observed among private commercial DNA testers from Switzerland, France, Yemen, Spain, Saudi Arabia, Portugal, Mali, Italy, Ashkenazi Jews and African Americans.^[17]