National Pie Day is a celebration of pies that occurs annually in the United States on January 23. It started in the mid-1970s by Boulder, Colorado, nuclear engineer, brewer, and teacher Charlie Papazian^[1] after he declared his own birthday, January 23, to be National Pie Day.^[2] Since 1986, National Pie Day is sponsored by the American Pie Council.^[3]

In 2014, the American Pie Council partnered with Paramount Pictures in promoting the romantic thriller film Labor Day in conjunction with National Pie Day.^[4] (A pie-making scene features prominently in the film, and the film's general release was within a few days of National Pie Day.)

The APC distributed a promotional poster to pie shops and bakeries featuring images of the film's stars Kate Winslet, Josh Brolin, and Gattlin Griffith in the pie-making scene. The poster is captioned, in part, "It makes the time we spend together, just a little sweeter. Pie. Grab a slice of life."^{[citation needed]}

Notwithstanding any problematic overtones, though, Variety's take on the scene was "What damage [the 1999 film] American Pie did for the pie industry, Labor Day has reversed."^[4]

• List of food days
• British Pie Week, 4-10 March