  We consider Dirichlet problems for fully nonlinear mixed local-nonlocal
non-translation invariant operators. For a bounded $C^2$ domain $\Omega \subset
\mathbb{R}^d,$ let $u\in C(\mathbb{R}^d)$ be a viscosity solution of such
Dirichlet problem. We obtain global Lipschitz regularity and fine boundary
regularity for $u$ by constructing appropriate sub and supersolutions coupled
with a 'weak version' of Harnack inequality. We apply these results to obtain
H\"{o}lder regularity of $Du$ up to the boundary.
