NIB, nib or NiB may refer to:

Nib (pen), the writing tip of a pen Saw nib, a small protrusion on the back of antique saws The Nib, an online comic Nib, partially processed cocoa bean Twizzlers Nibs, a candy Neodymium magnet or NIB (neodymium, iron, boron) "N.I.B.", a song by Black Sabbath .nib, Apple Interface Builder file format Net insurance benefit NiB, nickel boron, an electroless nickel alloy

In companies and organizations:

National Irish Bank National Intercollegiate Band Nordic Investment Bank North Irish Brigade nib Health Funds, Australasia New Iberia (Amtrak station), Louisiana, US, station code National Internet Backbone NIB-II, the BSNL internet backbone Nagasaki International Television, Japan National Intelligence Bureau