Surname Didimus (Didimus 
) , globally, is a rare family name. The last name Didimus is characteristic of Cameroon, where it is a rare surname, Malaysia, and Tanzania, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Cameroon, Indonesia, and Malaysia. More frequently, Didimus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Didimus | Tanzania, Cameroon, India, Indonesia, Malaysia |