Seyhoun

Seyhun or Seyhoun (سيحون) may refer to:
 * Seuhun, Arabic name of Syr Darya river
 * Hooshang Seyhoun, Iranian architect, sculptor, painter, scholar and professor
 * Massoumeh Seyhoun, Iranian artist, founder of Seyhoun Gallery, Tehran
 * Seyhun Topuz, Turkish sculptor.
 * Seyhoun Gallery, Tehran, art gallery in Iran
 * Seyhoun Gallery, Los Angeles, art gallery in USA