Alphabet Day may refer to:
Alphabet Day, observed in Albania on November 22 in celebration of the Congress of Manastir, which unified the country's alphabets Day of Slavonic Alphabet, Bulgarian Enlightenment and Culture, observed in Bulgaria on May 24 in celebration of the creation of the Cyrillic script Hangul Day, observed in North Korea on January 15 and in South Korea on October 9 in celebration of the creation of the Hangul writing system N’Ko Alphabet Day, observed in celebration of the finalization of the N’Ko script Old Permic Alphabet Day, observed in celebration of the Old Permic script Emma Memma's Alphabet Day, a book by Emma Watkins