Ni
- .ni
- Ampere-turn
- Balinese name
- Knights Who Say "Ni!"
- Lower Saxony
- Mount Ni
- Myers–Briggs Type Indicator
- N-I (rocket)
- N1 (disambiguation)
- NI tank
- NL (disambiguation)
- National Instruments
- National Insurance
- Native Instruments
- Nee (disambiguation)
- Neonatal isoerythrolysis
- New Internationalist
- News International
- Ni (cuneiform)
- Ni (kana)
- Ni (letter)
- Ni (surname)
- Ni River (New Caledonia)
- Ni River (Virginia)
- Nicaragua
- Nickel
- Nishan-e-Imtiaz
- Nishan-e-Iqbal
- Nitrogen Triiodide
- Non-Inscrits
- Norfolk Island
- North Island
- Northern Ireland
- Nuevas Ideas
- Ní
- Portugália