  We prove that a compact stratied space satises the Riemannian
curvature-dimension condition RCD(K, N) if and only if its Ricci tensor is
bounded below by K $\in$ R on the regular set, the cone angle along the stratum
of codimension two is smaller than or equal to 2$\pi$ and its dimension is at
most equal to N. This gives a new wide class of geometric examples of metric
measure spaces satisfying the RCD(K, N) curvature-dimension condition,
including for instance spherical suspensions, orbifolds, K{\"a}hler-Einstein
manifolds with a divisor, Einstein manifolds with conical singularities along a
curve. We also obtain new analytic and geometric results on stratied spaces,
such as Bishop-Gromov volume inequality, Laplacian comparison, L{\'e}vy-Gromov
isoperimetric inequality.
