GB or Gb may refer to:
Gbcast (also known as group broadcast) is a reliable multicast protocol that provides ordered, fault-tolerant (all-or-none) message delivery in a group of receivers within a network of machines that experience crash failure.
The GBU-39 Small Diameter Bomb (SDB) is a 250 lb (110 kg) precision-guided glide bomb that is intended to provide aircraft with the ability to carry a higher number of more accurate bombs.
Omogbolahan Gregory "Gboly" Ariyibi (born January 18, 1995) is an American professional soccer player who plays as a midfielder for Championship club Nottingham Forest.
GB 18030 is a Chinese government standard, described as Information technology — Chinese coded character set and defines the required language and character support necessary for software in China.
Gbenga Akinnagbe BENG-gə ə-KEEN-ə-bay (born December 12, 1978) is an American actor and writer, best known for his role as Chris Partlow on the HBO series The Wire.
Gboard is a virtual keyboard app developed by Google for Android and iOS devices. It was first released on iOS in May 2016, followed by a release on Android in December 2016, debuting as a major update to the already-established Google Keyboard app on Android.