2026-10-09

World Post Day 2026

9 October. Anniversary of the Universal Postal Union, founded in Bern in 1874.

World Post Day is 9 October. The Universal Postal Union was established in Bern in 1874. The UN observance page is the source for the date and for the 2026 theme, one postal network.

It is not a public holiday in most countries and not a shipping sale.