Advances　in　the　TiB2　nano-composites　reinforced　with　hybrid　of　SiC　whisker　(SiCw)　and　multilayer　graphene　(MLG)　have　been　thoroughly　investigated.　Hybrid　reinforcements,　combining　the　advantages　of　SiCw　as　well　as　MLG,　resulted　in　further　enhanced　mechanical　properties　in　TiB2-based　ceramic　nano-composites.　Excellent　mechanical　properties　were　achieved　for　hybrid　MLG/SiCw　reinforced　TiB2–TiN–MgO　samples　with　2.0　wt%　SiCw　and　0.4　wt%　MLG　through　two-step　sintering　with　a　hardness　of　21.2　GPa,　a　flexural　strength　of　1006.3　MPa　and　a　fracture　toughness　of　8.8　MPa　mm1/2.　Hybrid　addition　of　MLG　and　SiCw　performed　effectively　on　improving　the　densification　and　inhibiting　grain　growth　of　TiB2-based　ceramics.　Furthermore,　hybrid　addition　of　MLG/SiCw　could　significantly　improve　the　dispersion　of　MgO　nano-particulates　in　TiB2　matrix.　The　synergistic　effect　of　crack　deflection,　branching　and　bridging　as　well　as　MLG/SiCw　pullout　dramatically　enhanced　the　toughness　of　TiB2–TiN–MgO　ceramic　nano-composites.　©　2020　Elsevier　B.V.