Micromixer and combustor having the same

A micromixer configured to prevent auto-ignition and flash-back phenomena, and a combustor including the same are provided. The micromixer includes an inlet flow path configured including an inlet formed on one end and receiving a first fluid and a supply port formed on an inner wall and receiving a second fluid, and the inlet flow path is configured to flow a mixed fluid formed by mixing the first fluid and the second fluid, an outlet flow path injecting the mixed fluid to a combustion chamber and formed at a position spaced apart from a virtual extension line of the inlet flow path, and an inclined flow path connecting the inlet flow path and the outlet flow path and formed to be inclined at a predetermined angle to reduce transfer of radiant heat by flame generated in the combustion chamber to the inlet flow path.