All $\mathcal{N}=(8,0)$ AdS${}_3$ solutions in 10 and 11 dimensions

We classify AdS${}_3$ solutions preserving $\mathcal{N}=(8,0)$ supersymmetry in ten and eleven dimensions and find the local form of each of them. These include the AdS${}_3\times$S${}^6$ solution of \cite{Dibitetto:2018ftj} and the embeddings of AdS${}_3$ into AdS${}_4\times$S${}^7$, AdS${}_5\times$S${}^5$, AdS${}_7\mathrm{/}{\mathbb{Z}}_k\times$S${}^4$ and its IIA reduction within AdS${}_7$. More interestingly we find solutions preserving the superconformal algebras ${\mathfrak{f}}_4$, $\mathfrak{s}\mathfrak{u}(1,1\mathrm{\mid }4)$, $\mathfrak{o}\mathfrak{s}\mathfrak{p}(4^{\ast }\mathrm{\mid }4)$ on certain squashings of the 7-sphere. These solutions asymptote to AdS${}_4\times$S${}^7$ and are promising candidates for holographic duals to defects in Chern-Simons matter theories.