Last name Piirto (Piirto 
) , all over the world, is a rare family name. The surname Piirto is habitual in Finland, where it is quite a rare surname, Switzerland, where it is a very rare surname, and Australia. Not in comparison with a country's population, the name is most common in Finland, the United States, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Piirto | Australia, Switzerland, Finland, United States, Canada |
|
reino piirto FI (b. 1913) |
|
|
eero piirto Finnish singer, FI (b. 1932) |
|
| pekka piirto Finnish poet, FI (b. 1935) |
|
|
| johannes piirto Finnish pianist, FI |
|
Mr, Maija, Sanna, Susan, Antti, Craig, Kathy, Kacie, Keith, Petra, Petri, Pekko, Pietu, David, Leena, Jacob, Jenni, Jenny, Jenna, Jukka, Tonya, Teija, Marjo, Eric, Toni, Tomi, Ms, Max, Sam, Leo, Lia, Jay, Joy, Tim, Htm, Mary, Nella, Mike, Miia, Carl, Cory, Cody, Kari, Lari, Jane, Jake, John, Juho, Mika, and Elmer