Surname Mgonja (Mgonja 
) , worldwide, is a common cognomen. The family name Mgonja is characteristic of Tanzania, where it is quite a common surname, Denmark, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mgonja | United Kingdom, Tanzania, China, United States, Denmark |
| chedieli yohane mgonja Tanzanian politician (1934-2009), TZ (b. 1934) |
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| mary mgonja Tanzanian agricultural scientist, TZ |
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Amy, Juma, Tatu, Noel, Huba, Issa, Yona, Maria, Moses, Mussa, Mkaze, Salma, Sarah, Saidi, Saumu, Shani, Simon, Suzan, Allen, Alpha, Angel, Abdul, Joel, John, Jane, Lucy, Eva, Mary, Musa, Sara, Said, Sada, Suzy, Seif, Alex, Ally, Amani, Anna, Abby, Amos, Asha, Beta, Beda, Pili, Rose, Ruth, Leah, Lina, Abel, and Amina