Bessel

Bessel may refer to:
 * Bessel beam
 * Bessel ellipsoid
 * Bessel function in mathematics
 * Bessel's inequality in mathematics
 * Bessel's correction in statistics.
 * Bessel filter, a linear filter often used in audio crossover systems
 * Bessel Fjord, NE Greenland
 * Bessel Fjord, NW Greenland
 * Bessel (crater), a small lunar crater
 * Bessel transform, also known as Fourier-Bessel transform or Hankel transform
 * Bessel window, in signal processing
 * Besselian date, see Epoch (astronomy)
 * MV Bessel, a German merchant ship in service 1928–45, latterly for the Kriegsmarine

People

 * Friedrich Bessel (1784–1846), German mathematician, astronomer, and systematizer of the Bessel functions
 * Bessel Kok (born 1941), Dutch businessman and chess organiser