Surname Delduque (Delduque 
) , across the world, is a rare cognomen. The cognomen Delduque is habitual in Brazil, where it is a rare surname, Portugal, and Argentina, where it is an extremely rare surname. Much less frequently, Delduque is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Delduque | Portugal, United States, India, Argentina, Brazil |
| renata gouveia delduque person identified in the Museu da Pessoa collection, BR (b. 1956) |
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| maria célia delduque researcher |
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