List of Japanese anniversaries and memorial days

This is a list of Japanese anniversaries and memorial days or kinenbi (記念日). Many dates have been selected because of a special relationship with the anniversary, but some are the product of Japanese wordplay (語呂合わせ).

These are listed by month in date order. Those excluded from the list are as follows:
 * Public holidays in Japan such as New Year's Day, National Foundation Day, etc.
 * Traditional festivals such as Tanabata and Setsubun
 * Personal anniversaries (such as birthdays and wedding anniversaries)
 * Anniversaries and memorial days that are only held in a certain locality
 * Anniversaries created by companies or organizations to promote a product or event that were not continued or effectively were not commemorated.

February

 * 14 February: Valentine's Day

March

 * 14 March: White Day
 * 20 March: Minion Day

April

 * 18 April: Invention Day — Japan Patent Office
 * 20 April: Postal Day — Japan Post Holdings
 * 23 April: Children's reading Day (子ども読書の日)

May

 * 9 May: Goku (孫悟空) Day — established by the Japan Anniversary Association in 2015
 * 27 May: Dragon Quest Day — established by the Japan Anniversary Association in 2018 for its impact on Japanese culture

June

 * 5 June: Environment Day (環境の日)
 * 10 June:
 * 23 June: — Okinawa Prefecture

July

 * 7 June: Tanabata (星祭り, Hoshi Matsuri, "Star Festival")
 * 22 July: One Piece Day — established by the Japan Anniversary Association in 2017

August

 * 14 August: Happy Summer Valentine (テニスの王子様) — established by the Japan Anniversary Association in 2018

September

 * 6 September: Younger Sister's Day (妹の日, Imouto no Hi)
 * 13 September: Fist of the North Star (北斗の拳) Day — established by the Japan Anniversary Association in 2018

October

 * 1 October: International Music Day (国際音楽の日)

November

 * 1 November: Classics Day (古典の日) — established on November 1, 2008, which was the 1000th anniversary of The Tale of Genji
 * 11 November: Pocky & Pretz Day (ポッキー＆プリッツの日, Pokkii & Purittsu no hi) — marketing event regarding Glico products Pocky and Pretz

December

 * 1 December: Motion Picture Day — Motion Picture Producers Association of Japan