Is Dennys Open On Christmas Day 2024.  — denny’s restaurants nationwide will be open on both christmas eve and christmas day this year, and the restaurant chain will even be offering a special offer for all. Know when the holidays fall.

 — although it’s still not a bad idea to call ahead, denny’s is open on christmas day. Denny’s is open all year so if you are looking for a place to eat during the holidays, they have you covered.