Frogs And Toads On Stamps, Covers And Postmarks.

Namibia
Frogs of Namibia
March 23, 2011
Long Reed Frog (Hyperolius nasutus)
Bubbling Kassina (Kassini senegalensis)
Tandy's Sand Frog (Tomopterna tandyi)
Angolan Reed Frog (Hyperolius parallelus)

#3105g - Wyoming Toad from Endangered Wildlife
#3611h - Blind Click Beele Tree Frog from Longleaf Pine Forest as well as #3611i Southern Toad from the same sheet.

#3817 - Ornate Chorus Frog from Reptiles & Amphibians

Ecuador
30th Anniversary of Science Faculty of San Francisco University
December 2018
Set of eight, one stamp depicts Crystal of Maria Elena Frog (Chimerella mariaelenae).

Singapore
Pond Life
April 13, 2011
Set of 14, two stamps depict common green frog (Rana erythraea) and common toad (Bufo melanostictus).

Costa Rica
Children's Eternal Rain Forest - Monteverde
August 24, 2011
Set of four, one stamp depicts Rancho Redondo frog (Lithobates vibicarius).

Sc#1790G 1999 45c 50c Small Pond Fauna. Souvenir sheet, Overprinted BANGKOK 2000

Javelin Frog
Roth's Tree Frog
Northern Dwarf Tree Frog
Magnificent Tree Frog.

Haiti
World Wildlife Fund
August 27, 1999
Set of four, two stamps depict Hispaniola Treefrog (Hyla vasta).

Australia : Sc#3969A 2013 Carnivorous Plants (Do they eat frogs?...yes the Pitcher plant)

Bangladesh
Rare Animals of Bangladesh
July 17, 2011
Set of four, one stamp shows Indian Green Frog (Euphlyctis hexadactylus).

Malaysia
Semi-Aquatic Animals
October 9, 2006
Set of seven, one stamp depicts Common Tree Frog (Polypedates leucomystax).

Uruguay
Fauna
August 30, 2012
Set of four, one stamp shows Rococo Toad (Rhinella schneideri) and Large Carpenter Bee (Xylocopa augusti).

Guernsey's March 8, 2007 booklets showing local sites and native wildlife feature one stamp (Sc.#925d) depicting the common frog (Rana temporaria). This amphibian is also known as the European common frog, or the European grass frog. The stamp is denominated at the "GY" local rate (32p).

From Wikipedia, "It is found throughout much of Europe as far north as Scandinavia and as Far East as the Urals, except for most of Iberia, southern Italy, and the southern Balkans."

"Frog School," printed by lithography, and issued by North Vietnam on January 30, 1972 as one of a set of six stamps depicting folk engravings from Dong Ho, Scott No. 656.

- nethryk

Two of Uruguay's 2001 set of four "Frogs and Turtles" stamps depict native frog species. Shown are the snout frog (Scinax squalirostris) and the monkey frog (Phyllomedusa iheringii) as painted by Uruguayan artist and illustrator Elena Maldonado.

On February 27, 2008 Finland issued a booklet of 5, first class rate stamps showing stylized animals. The subject of one of the stamps is frogs.