Surname Гуида (Guida 
, Guyda 
, Гуида 
) , in the entire world, is a common cognomen. The family name Гуида is habitual in Italy, where it is quite a common surname, Reunion, and Argentina, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Italy, Brazil, and the United States. Very seldom, Гуида is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guida | Portugal, Italy, United States, Argentina, Brazil |
| Guyda | Reunion, United States, Canada, Brazil, Democratic Republic of the Congo |
| Гуида | Russia |
| Gouida | Greece, Morocco, Egypt, Spain, Canada |