Family name מדו (מדו 
, Maddow 
) , all over the world, is a very rare surname. The cognomen מדו is habitual in Israel, where it is a rare surname, the United States, where it is a very rare surname, and Canada, where it is an extremely rare surname. Much less frequently, מדו is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| מדו | Israel |
| Maddow | United Kingdom, United States, Canada |