World Sight Day

10/8/2026

Worldwide observance

World Sight Day is annually held on the second Thursday of October to raise awareness about blindness and vision impairment.

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World Post Day

10/9/2026

United Nations observance

World Post Day marks the anniversary of the Universal Postal Union's establishment in 1874. It is held on October 9 each year.

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Leif Erikson Day

10/9/2026

Observance

Leif Erikson Day honors the first Scandinavian known to have set foot on American soil and the contribution of the Nordic peoples to the United States.

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Leif Erikson Day

10/9/2026

Local observance

Leif Erikson Day honors the first Scandinavian known to have set foot on American soil and the contribution of the Nordic peoples to the United States.

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World Mental Health Day

10/10/2026

United Nations observance

World Mental Health Day, which is supported by the United Nations (UN), is annually held on October 10 to raise public awareness about mental health issues worldwide.

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