Source-backedFixed Annual
World Frog Day
The current World Frog Day platform says the observance is held every year on 20 March and is organized by SAVE THE FROGS!; its own history notes earlier informal use of the date.
Topic facet
Nature Environment observances
Nature, ecosystems, environmental awareness and conservation.
181 records
Authority records
Source-backedFixed Annual
World Giraffe Day
The Giraffe Conservation Foundation states that it initiated World Giraffe Day and that the annual event is held on June 21 every year.
Source-backedFixed Annual
World Green Roof Day
World Green Roof Day organizers; founded in 2020
Source-backedFixed Annual
World Hippo Day
Zoos SA’s current World Hippo Day material uses 15 February, while public-zoo observance records provide institutional support for the same date.
Source-backedFixed AnnualIn-depth guide
World Horse Day
A/RES/79/291
Source-backedFixed AnnualIn-depth guide
World Lake Day
A/RES/79/142
Source-backedRule Based Annual
World Lemur Day
Lemur Conservation Network / World Lemur Festival
Source-backedFixed Annual
World Lion Day
Organizer-origin observance corroborated by Government of India wildlife communications
Source-backedFixed Annual
World Lizard Day
Akron Zoo states that World Lizard Day is celebrated each year on 14 August and uses the observance for reptile education.
Source-backedFixed AnnualIn-depth guide
World Meteorological Day
WMO/EC-XII/Res.6
Source-backedRule Based AnnualIn-depth guide
World Migratory Bird Day
UNEP / CMS / AEWA partner campaign
Source-backedRule Based Annual
World Numbat Day
Project Numbat states that after its inaugural 2015 event, World Numbat Day would be celebrated on the first Saturday of November.
Source-backedFixed AnnualIn-depth guide
World Oceans Day
A/RES/63/111
Source-backedFixed Annual
World Octopus Day
World Animal Protection identifies 8 October as World Octopus Day, and Birch Aquarium at UC San Diego has documented 8 October programming for the observance.
Source-backedFixed AnnualIn-depth guide
World Olive Tree Day
Proclaimed at UNESCO’s 40th General Conference (2019)
Source-backedRule Based Annual
World Pangolin Day
IUCN SSC Pangolin Specialist Group / World Pangolin Day movement
Source-backedFixed Annual
World Parrot Day
World Parrot Trust
Source-backedFixed Annual
World Penguin Day
Penguins International’s World Penguin Day page identifies 25 April as the observance date and frames it around penguin awareness and conservation.
Source-backedFixed Annual
World Plant Milk Day
The World Plant Milk Day campaign identifies 22 August as its annual date, while ProVeg documents the campaign’s 2017 launch with Plant Based News.
Source-backedFixed Annual
World Rainforest Day
Rainforest Partnership states that it founded World Rainforest Day in 2017 and identifies the observance date as 22 June.
Source-backedFixed Annual
World Rhino Day
World Rhino Day campaign; first announced by WWF-South Africa
Source-backedRule Based Annual
World Rivers Day
World Rivers Day organizers; global initiative launched in 2005 alongside the UN Water for Life Decade
Source-backedFixed Annual
World Sea Turtle Day
Thailand’s Department of Marine and Coastal Resources identifies 16 June each year as World Sea Turtle Day.
Source-backedFixed AnnualIn-depth guide
World Seagrass Day
A/RES/76/265
Source-backedEdition Specific
World Snake Day
Lincoln Park Zoo schedules World Snake Day on 16 July 2026, and India’s National Zoological Park has documented its own 16 July World Snake Day observance through the Press Information Bure…
Source-backedFixed AnnualIn-depth guide
World Soil Day
A/RES/68/232
Source-backedFixed Annual
World Sparrow Day
The official World Sparrow Day site states that the initiative is observed annually on March 20, was initiated in 2010 by Nature Forever Society with partners, and lists March 20, 2026 for…
Source-backedFixed Annual
World Tapir Day
World Tapir Day organization
Source-backedVariable Custom
World Topiary Day
Levens Hall, founder and organizer
Source-backedFixed AnnualIn-depth guide
World Tuna Day
A/RES/71/124
Source-backedFixed Annual
World Turtle Day®
The official World Turtle Day site states that American Tortoise Rescue founded the observance in 2000 and that World Turtle Day is held annually on May 23; its 2026 release marks the 26th…
Source-backedFixed AnnualIn-depth guide
World Water Day
A/RES/47/193
Source-backedFixed Annual
World Water Monitoring Day
EarthEcho International / Water Challenge program
Source-backedFixed AnnualIn-depth guide
World Wetlands Day
A/RES/75/317
Source-backedEdition Specific
World Whale Day
Pacific Whale Foundation’s current 45th Annual World Whale Day program runs 9–15 February 2026 and culminates in the World Whale Day Parade on 15 February.
Source-backedFixed AnnualIn-depth guide
World Wildlife Day
A/RES/68/205
Source-backedEdition Specific
World’s Largest Pet Walk
Pet Partners lists the 2026 World’s Largest Pet Walk for 26 September and describes it as its signature annual fundraising walk.