Family name Maddams (Maddams 
) , all over the world, is a rare cognomen. The last name Maddams is characteristic of Australia, where it is a rare surname, the United Kingdom, and New Zealand. In absolute terms, it is the most numerous in the United Kingdom, Australia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Maddams | Canada, Australia, United States, United Kingdom, South Africa |
|
pippa maddams British mountain runner, GB (b. 1974) |
|
| alexander maddams researcher |
|