Last name Octave (Octave 
, Octavus 
, Октав 
) , around the globe, is quite a rare cognomen. The surname Octave is habitual in Latin America and the Caribbean, particularly Saint Lucia, where it is a common surname, Guadeloupe, where it is quite a common surname, and Barbados, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Ethiopia, France, and the United States. More frequently, Octave is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Octave | Ethiopia, Ivory Coast, Rwanda, France, Democratic Republic of the Congo |
| Octavus | South Africa, United States |
| Октав | Russia, Ukraine |
| אוקטב | Israel |
Octavé, Utas, Оцтаве, and อ๊อกกังวาล
| jean octave Luxembourgish journalist, LU (b. 1942) |
|
|
| jean-françois octave Belgian architect, BE (b. 1955) |
|
|
| henri octave French politician, FR (b. 1960) |
|
|
| stéphane octave researcher (b. 1978) |
|
|
| michael octave |
|