Title Semi-symmetric contact metric manifolds of dimension≥5 Type of Research Article Keywords Contact manifolds, Semi-symmetric spaces, Conformally flat manifolds Abstract We classify semi-symmetric contact metric manifolds M^(2n+1) (φ,ξ,η,g), n≥2 with ξ -parallel tensor h, where 2h denotes the Lie derivative of the structure tensor φ in the direction of the characteristic vector field ξ. Researchers Nasrin Malekzadeh (First Researcher)، Esmaiel Abedi (Second Researcher)