Bik, BIK or bik may refer to:

• .bik, the file extension for the Bink Video file format
• Bik, the nickname of Dr. Bikram DasGupta, Canadian psychotherapist and scientist in psychology
• Bik, the nickname of Brendan McFarlane, an Irish Republican activist
• ISO 639:bik, one of the language codes for Bikol (spoken in the Philippines)
• Frans Kaisiepo Airport, Biak
• Bik, Iran, a village in North Khorasan Province, Iran
• Bcl-2-interacting killer, a human gene
• Benefit in Kind, the value of something for tax purposes
• Baig, There are various other alternative spellings used today as well, such as: Begg, Beg, Beigh, Beyg, Bayg, Bek, Bik.

This page is about the book of Bikkurim. See First Fruits: Hebrew perspective for the offering.

Bikkurim (, lit. "First-fruits") is the eleventh tractate of Seder Zeraim ("Order of Seeds") of the Mishnah and of the Talmud. All versions of the Mishnah contain the first three chapters, and some versions contain a fourth.

Bink is a proprietary video file format (extension .bik) developed by RAD Game Tools, and primarily used for full-motion video sequences in video games. It has been used in over 6200 games for Windows, Mac OS, Xbox 360, Xbox, GameCube, Wii, PlayStation 3, PC, PlayStation 2, Dreamcast, Nintendo DS, and Sony PSP. The format includes its own video and audio codecs, supporting resolutions from 320×240 all the way up to high definition video. It is bundled as part of the RAD Video Tools along with RAD Game Tools' previous video codec, Smacker video. It is a hybrid block-transform and wavelet codec capable of using 16 different encoding techniques allowing it to compress any type of video. The codec places emphasis on lower decoding requirements over other video codecs with specific optimizations for the different computer game consoles it supports.