Experimental tests of QCD

The first very successful LHC running period has been finished. At $7\,$TeV centre-of-mass energy about $5\,\mathrm{fb}^{-1}$ of data have been collected and at $8\,$TeV even $20\,\mathrm{fb}^{-1}$. Many detailed analyses of these data are still going on. The latest measurements on photon, weak boson plus jet, and jet production are compared against the most recent theory predictions. They are complemented by new results reported by the experiments at the Tevatron and HERA colliders. Finally, several new determinations of the strong coupling constant from jet data are presented.