Obstruction

Obstruction may refer to:

Places

 * Obstruction Island, in Washington state
 * Obstruction Islands, east of New Guinea

Medicine

 * Obstructive jaundice
 * Obstructive sleep apnea
 * Airway obstruction, a respiratory problem
 * Recurrent airway obstruction
 * Bowel obstruction, a blockage of the intestines.
 * Gastric outlet obstruction
 * Distal intestinal obstruction syndrome
 * Congenital lacrimal duct obstruction
 * Bladder outlet obstruction

Politics and law

 * Obstruction of justice, the crime of interfering with law enforcement
 * Obstructionism, the practice of deliberately delaying or preventing a process or change, especially in politics
 * Emergency Workers (Obstruction) Act 2006

Science and mathematics

 * Obstruction set in forbidden graph characterizations, in the study of graph minors in graph theory
 * Obstruction theory, in mathematics
 * Propagation path obstruction
 * Single Vegetative Obstruction Model

Sports

 * Obstruction (baseball), when a fielder illegally hinders a baserunner
 * Obstructing the field