The present disclosure relates to an optical laminate including: a supporting substrate layer; and a hard coating layer located on at least one surface of the supporting substrate layer and including a cured product of a hard coating composition, wherein the hard coating composition includes: a polysiloxane including 70 mol % or more of a structural unit containing a glycidyl group-containing functional group; an elastomer; and a reactive monomer containing at least one functional group capable of cross-linking with the polysiloxane, and the elastomer is contained in an amount of 5 to 80 parts by weight based on 100 parts by weight of the polysiloxane. The present disclosure also relates to a flexible display apparatus including the above optical laminate.