Cubic boron nitride sintered material and cutting tool including same

A cubic boron nitride sintered material comprising:

• cubic boron nitride particles in an amount of 70 vol % or more and less than 100 vol %, and a bonding material, wherein
• the bonding material comprises, as constituent elements, cobalt, aluminum, and at least one first metallic element selected from the group consisting of titanium, zirconium, vanadium, niobium, hafnium, tantalum, chromium, rhenium, molybdenum, and tungsten;
• the cubic boron nitride sintered material has a first interface region that is a region sandwiched between an interface formed between a surface of the cubic boron nitride particles and the bonding material, and a first virtual line passing through the bonding material at a point 10 nm apart from the interface to on the bonding material side;
• and
• wherein an element that is present at the highest concentration among the first metallic elements in the first interface region is defined as a first element, an atomic concentration of the first element in the first interface region is higher than an atomic concentration of the first element in the bonding material outside the first interface region.