Surname Coldiron (Coldiron 
) , all over the world, is quite a rare last name. The last name Coldiron is characteristic of the United States, where it is a rare surname, Canada, where it is a very rare surname, and New Zealand.
| VARIANT | COUNTRY |
|---|---|
| Coldiron | Canada, Venezuela, New Zealand, United Kingdom, United States |
| a e b coldiron researcher (b. 1959) |
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| matthew e coldiron researcher |
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| greg coldiron college basketball player (1979–1982) Morehead State |
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| margaret coldiron actress, teacher and theatre director |
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| anne coldiron |
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