Surname Johnia (Johnia 
) , all over the world, is an extremely rare cognomen. The surname Johnia is habitual in Southern Asia, particularly India, where it is an extremely rare surname. Predominantly, Johnia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Johnia | India, Tanzania, United States, South Africa, Philippines |
Aspe, Joseph, Jordan, Thomas, Harris, Vivian, Walker, Wilson, Charles, Crowder, Baladic, Brunson, Tegereza, Nichols, Hudgins, Mccumbee, Stalling, Browning, Kakiziba, Jarnigan, Hallinquest, Callicutt, Lavine, Guyton, Garcia, Palmer, Bell, Bibb, King, Redd, John, Neil, Witt, Sharp, Bagby, Boehm, Lekgoathi, Britt, Gould, Jolly, Osias, Young, Murray, Carter, Curtis, Bangal, Burris, Parker, Brown, and Washington