Other Uses
- Packet Too Big, an ICMPv6 message
- The powers that be (disambiguation)
- Proto-Tibeto-Burman language
- Project Team Builder, a project management simulator
- Permian-Triassic boundary, the mass extinction event between the periods in geology
- P.T.B. (Placentia Town Ballers), the second album of the rapcore group Kingspade
- Pounds of salt per thousand barrels of crude oil, see desalting of crude oil
- .PTB, a file extension used by musical tablature authoring tool Power Tab
- PTB, Powers That Be
Read more about this topic: PTB