II

II is the Roman numeral for 2.

II may also refer to:

Biology and medicine

Image intensifier, medical imaging equipment
Invariant chain, a polypeptide involved in the formation and transport of MHC class II protein
Optic nerve, the second cranial nerve

Businesses and organizations

IBC Airways (IATA airline designator II)

Music

Supertonic, in music

Albums

II (2 Unlimited album), 1998
II (Bad Books album), 2012
II (Boyz II Men album), 1994
II (Capital Kings album), 2015
II (Charade album), 2004
II (Compact Disco album), 2011
II (Cursed album), 2005
II (Darna album), 2003
II (Espers album), 2006
II (Fuzz album), 2015
II (Hardline album), 2002
II (High Rise album), 1986
II (Khun Narin album), 2016
II (Kingston Wall album), 1993
II (Krux album), 2006
II (Kurious album), 2009
II (Lords of Black album), 2016
II (Maylene and the Sons of Disaster album), 2007
II (METZ album), 2015
II (Moderat album), 2013
II (Sahg album), 2008
II (Seven Thorns album), 2013
II (The Common Linnets album), 2015
II (The Kinleys album), 2000
II (The Presidents of the United States of America album), 1996
II (Unknown Mortal Orchestra album), 2013
II (Xerath album), 2011
Crystal Castles II, 2010
Led Zeppelin II, 1969
Meat Puppets II, 1984
Viva Koenji!, Koenji Hyakkei album, also known as 弐(II)

Songs

ii (2018) by CHVRCHES

People

Ii is a Japanese surname, daimyō of Hikone:
- Ii clan, Japanese clan (Sengoku period)
- Ii Naomasa, one of four Guardians of the Tokugawa clan
- Ii Naotora, female daimyō and foster mother of Naomasa
- Ii Naoyuki, a Japanese author
John Papa ʻĪʻī, a Hawaiian noble

Other uses

ii (digraph), a digraph in certain romanized alphabets
ii (IRC client), short for IRC It, an Internet Relay Chat client for Unix-like operating systems
Ii, Finland, a municipality of Finland
Illegal immigrant (especially in Hong Kong vernacular)
Institutional Investor (magazine), an American finance magazine
Income inequality, or the wealth gap, in economics
Index Islamicus, a bibliography database of publications about Islam and the Muslim world
Internet Infidels, a discussion forum
Internationalization Index, used by the UN to rank nations and companies in evaluating their degree of integration with the world economy
Yi language (ISO 639 alpha-2 code ii)

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