OTF

OTF may refer to:

== Science and technology == OTF knife, or sliding knife, a type of pocketknife OpenType, a standard for digital typography (file extension .otf) Optical transfer function, a metric for evaluating optical systems Triflate, in organic chemistry, a functional group represented by the symbol -OTf Off-the-film metering, in camera metering systems, a type of through-the-lens metering