If
- (if)
- A Short Album About Love
- Bananarama discography
- Bill Ryder-Jones
- Ceremony (The Cult album)
- Château d'If
- Davido
- Destiny Fulfilled
- Femme Fatale (Femme Fatale album)
- Funny current
- I-F
- IF (film)
- IF (x86 flag)
- IF Magazine
- IF Metall
- IFF (disambiguation)
- IFS (disambiguation)
- If (Bread song)
- If (French Kiss song)
- If (Glass Hammer album)
- If (Glasvegas song)
- If (If album)
- If (Janet Jackson song)
- If (Kana Nishino song)
- If (Mata Aetara)
- If (Pink Floyd song)
- If (They Made Me a King)
- If (band)
- If (insurance company)
- If (magazine)
- If (preposition)
- If (subordinator)
- If and only if
- If-then-else
- If... (Desperate Housewives)
- If... (TV series)
- If... (The Bluetones song)
- If... (comic)
- If....
- If—
- Illuminati Films
- Immunofluorescence
- Impact factor
- In Flames
- Independent Fabrication
- Information filtering system
- Initiation factor
- Inside forward
- Intellectual freedom
- Intelligent Finance
- Intelligent falling
- Interactive fiction
- Interface (computing)
- Interflug
- Intermediate filament
- Intermediate form
- Intermediate frequency
- Intermittent fasting
- Internal focusing
- International Forum Design
- International Fujita scale
- Interstitial fluid
- Intrinsic factor
- Iodine monofluoride
- Islamic Front (Syria)
- Islas Airways
- Jeri Lynne Fraser
- Joe Satriani (album)
- Kalman filter
- Kill la Kill
- List of Hyperdimension Neptunia characters
- List of international sport federations
- New Addictions
- Scorpio Rising (band)
- Shin Megami Tensei If...
- Shine (Joni Mitchell album)
- Stadium Arcadium
- Unmixed
- Vehicle registration plates of Romania