Primus
- Adler Primus
- CAIGA Primus 150
- HC2 Holdings
- Honeywell Primus
- Marcus Antonius Primus
- PRIMUS (journal)
- Patient Reported Outcome Indices for Multiple Sclerosis
- Pope Primus of Alexandria
- Prima (disambiguation)
- Prime (disambiguation)
- Primus (DC Comics)
- Primus (Marvel Comics)
- Primus (TV series)
- Primus (band)
- Primus (cycling team)
- Primus (name)
- Primus AB
- Primus Canada
- Primus Peak
- Primus Telecommunications (Australia)
- Primus beer
- Primus of the Scottish Episcopal Church
- Primus stove
- SSPH Primus
- Saint Primus
- Schlage
- Secundus (disambiguation)
- Stardust (Gaiman novel)
- The New Adventures of He-Man
- Transformers