Fredo merkilegu heiti: Nútíma, Heppinn, Virk, Gaum, Rokgjarnt. Fá Fredo merking nafns.
Fredo Uppruni fornafns. Short form of Federico, Alfredo or Goffredo. Fá Fredo Uppruni fornafns.
Samheiti fyrir Fredo í mismunandi löndum og tungumálum: Ælfræd, Alf, Alfie, Alfred, Alfredas, Alfredo, Alfréd, Bedřich, Fedde, Federico, Fiete, Fred, Freddie, Freddy, Frederick, Frederico, Frederik, Fredric, Fredrick, Fredrik, Frédéric, Freek, Fricis, Friderik, Frīdrihs, Friduric, Friedrich, Frigyes, Friðrik, Frits, Fritz, Fryderyk, Geffrey, Geoff, Geoffrey, Geoffroi, Geoffroy, Gjord, Gjurd, Godafrid, Godefroy, Godfrey, Godfried, Godofredo, Godtfred, Gofraidh, Goraidh, Gottfrid, Gottfried, Guðfriðr, Jeff, Jeffery, Jeffrey, Jeffry, Jep, Joffrey, Rik, Séafra, Sieffre, Siothrún, Veeti. Fá Fredo á öðrum tungumálum.
Algengustu nöfnin með eftirnafninu Thorrington: Booker, Arthur, Ronald, Fredric, Courtney. Fá Nöfn sem fara með Thorrington.