We present the VST ATLAS Quasar Survey, consisting of ~1229000 quasar (QSO) candidates with 16 < g < 22.5 over ~4700 deg^2^. The catalogue is based on VST ATLAS+NEOWISE imaging surveys and aims to reach a QSO sky density of 130 deg^-2^ for z 2.2. To guide our selection, we use X-ray/UV/optical/MIR data in the extended William Herschel Deep Field (WHDF) where we find a g 2.2 QSOs at g 1*10^-14^ erg/cm^-2^/s^-1^ limit of eROSITA. We adjust the selection criteria from our previous 2QDES pilot survey and prioritize VST ATLAS candidates that show both UV and MIR excess, also selecting candidates initially classified as extended. We test our selections using data from DESI (which will be released in DR1) and 2dF to estimate the efficiency and completeness, and we use ANNz2 to determine photometric redshifts. Applying over the ~4700 deg^2^ ATLAS area gives us ~917000 z<2.2 QSO candidates of which 472 000 are likely to be z 2.2, we find ~310000 candidates, of which 169000 are likely to be QSOs for a sky density of ~36 deg^-2^.

Cone search capability for table J/MNRAS/521/3384/janngc (Photometry of selected VST ATLAS QSO in NGC Northern Galactic Cap released in 31/01/2023)

Cone search capability for table J/MNRAS/521/3384/jansgc (Photometry of selected VST ATLAS QSO in SGC Northern Galactic Cap released in 31/01/2023)

Cone search capability for table J/MNRAS/521/3384/marngc (Photometry of selected VST ATLAS QSO in NGC Northern Galactic Cap released in 06/03/2023)

Cone search capability for table J/MNRAS/521/3384/marsgc (Photometry of selected VST ATLAS QSO in SGC Northern Galactic Cap released in 06/03/2023)