The Journal of Instrumentation is an online peer-reviewed scientific journal. It is published by IOP Publishing on behalf of the International School for Advanced Studies.

The journal covers concept and instrumentation in topic areas related to, and including detector and accelerator science, including related theory, simulations, modelling, and experimental methods.

The journal is abstracted and indexed in:

According to the Journal Citation Reports, the journal has a 2023 impact factor of 1.3.

The journal publishes the complete scientific documentation of the CERN Large Hadron Collider machine and detectors. These papers are published as open access. It also publishes the technical reports concerning the Planck Low Frequency Instrument on board the European Space Agency's Planck satellite, which was launched in May 2009, and the three-volume technical report of the Deep Underground Neutrino Experiment (DUNE). These papers are also published as open access.