We report the first hypervelocity star ( HVS ) discovered from the LAMOST spectroscopic survey .
It is a B-type star with a heliocentric radial velocity about 620 { { km s ^ { -1 } } } , which projects to a Galactocentric radial velocity component of \sim 477 { { km s ^ { -1 } } } .
With a heliocentric distance of \sim 13 kpc and an apparent magnitude of \sim 13 mag , it is the nearest bright HVS currently known .
With a mass of \sim 9 M _ { \odot } , it is one of the three most massive HVSs discovered so far .
The star is clustered on the sky with many other known HVSs , with the position suggesting a possible connection to Galactic center structures .
With the current poorly-determined proper motion , a Galactic center origin of this HVS remains consistent with the data at the 1 \sigma level , while a disk run-away origin can not be excluded .
We discuss the potential of the LAMOST survey to discover a large statistical sample of HVSs of different types .