How to pronounce Duquesnel?

Duquesnel is a French surname.
Apply these two rules:
1. The "s" is silent;
2. the accent belongs on the final syllable.
So, pronounce Duquesnel as: "dew-keh-NEL."
Same rules apply to "Duquesne" (dew-KANE)," and (I suspect, but admit I am less certain) to Duquesnoy (dew-keh-NOY).

And, thank you for asking! :)
James G. Duquesnel

Last Name

French

of the oak, or of the forest (as in forester)

The name appears to originate in the Picardie region of northern France, formerly forested land now largely cleared for agriculture.