Layout of the three Euclid Deep Fields, using coordinates in the ICRS, overlaid on top of the reddening map from Planck Collaboration XI (2014) with bright stars from 2MASS (Skrutskie et al. 2006) and ATLAS (Tonry et al. 2018) indicated. The thick blue lines show the areas that will be covered to full depth. The thinner blue lines approximate the wider but shallower extent due to dithering. Upper-left panel: the EDF-N contains the Herschel (Pearson et al. 2017) and AKARI NEP-wide surveys (Lee et al. 2009), as well as the Euclid self-calibration field (dashed black circle). Upper-right panel: the EDF-F contains the Chandra Deep Field South. Bottom panel: the EDF-S will also be observed by two LSST deep-drilling fields. All three fields have been fully covered in four Spitzer bands (Euclid Collaboration: Moneti et al. 2022), and are well suited for broad, extragalactic science.