Checkiday.com
Checkiday.com
Checkiday.com
Shop our 2025 calendars. Now available for purchase!

Holidays for Monday, August 18th, 2025

chevron_leftPrev Nextchevron_right
shuffle
Go to a random event
Switch to list view
Share
Image for Cupcake Day (Australia)
Also known as RSPCA Cupcake Day

Observed the third Monday in August
Image for Never Give Up Day
Also known as International Never Give Up Day

Observed annually on August 18th
Image for On This Day in History
Things that happened on this day in years past

Multi-day Events Continuing on Monday, August 18th, 2025