Cognomen Halflants (Halflants 
) , in the entire world, is a rare family name. The cognomen Halflants is habitual in Belgium, where it is quite a rare surname, Chile, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Halflants | Belgium, Chile, United States |
| cornelius halflants Belgian missionary, BE (b. 1831) |
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| louis halflants Belgian politician, BE (b. 1833) |
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| paul halflants Belgian priest and writer (1873-1945), BE (b. 1873) |
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| louis halflants Belgian painter (1898-1984), BE (b. 1898) |
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