Title: Monopole Floer homology and Legendrian knots Abstract: We will define invariants of Legendrian knots using Kronheimer and Mrowka's construction of monopole Floer homology for sutured manifolds. These invariants have several interesting properties: their behavior under stabilization and contact surgery suggests that they are closely related to the Lisca-Ozsvath-Stipsicz-Szabo invariant in knot Floer homology, and they are functorial with respect to Lagrangian concordance. As an application, we will construct many examples of non-loose knots in overtwisted contact manifolds.