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We present a search for extremely red, dust-obscured, $z>7$ galaxies with$\textit{JWST}$/NIRCam+MIRI imaging over the first 20 arcmin$^2$ ofpublicly-available Cycle 1 data from the COSMOS-Web, CEERS, and PRIMER surveys.Based on their red color in F277W$-$F444W ($\sim 2.5$ mag) and detection inMIRI/F770W ($\sim 25$ mag), we identify two galaxies$\unicode{x2014}$COS-z8M1and CEERS-z7M1$\unicode{x2014}$which have best-fit photometric redshifts of$z=8.5^{+0.3}_{-0.4}$ and $z=7.6^{+0.1}_{-0.1}$, respectively. We perform SEDfitting with a variety of codes (including BAGPIPES, PROSPECTOR, BEAGLE, andCIGALE), and find a $>95\%$ probability that these indeed lie at $z>7$. Bothsources are compact ($R_{\rm eff} \lesssim 200$ pc), highly obscured ($A_V \sim1.5$$\unicode{x2013}$$2.5$), and, at our best-fit redshift estimates, likelyhave strong [OIII]+H$\beta$ emission contributing to their $4.4\,\mu$mphotometry. We estimate stellar masses of $\sim 10^{10}~M_\odot$ for bothsources; by virtue of detection in MIRI at $7.7\,\mu$m, these measurements arerobust to the inclusion of bright emission lines, for example, from an AGN. Weidentify a marginal (2.9$\sigma$) ALMA detection at 2 mm within $0.5''$ ofCOS-z8M1, which if real, would suggest a remarkably high IR luminosity of $\sim10^{12} L_\odot$. These two galaxies, if confirmed at $z\sim 8$, would beextreme in their stellar and dust masses, and may be representative of asubstantial population of modestly dust-obscured galaxies at cosmic dawn.

Two massive, compact, and dust-obscured candidate $z\sim 8$ galaxies discovered by JWST