Search for new exotic phenomena with the ATLAS detector at the LHC

The LHC is running since 2015 at a centre of mass energy of 13 TeV and the ATLAS detector has collected data efficiently during this time. This new energy opens a large window for searches beyond the Standard Model of particle physics. Results on searches for resonances decaying into vector boson or fermions, for vector like quarks, for dark matter, for leptoquarks and for other new phenomena using these data will be presented.