Obstruction

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

• 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

• 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

• 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

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

• The Five Obstructions, a 2003 film
• USS Obstructor, an American minelayer ship used in World War II

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