NPV

NPV may refer to:

In economics:
 * Net present value, an economic standard method for evaluating competing long-term projects in capital budgeting

In politics:
 * National Popular Vote Interstate Compact, an initiative in the United States to elect the presidential candidate with the most votes nationwide

In medicine and science:


 * Negative predictive value, in biostatistics, the proportion of patients with negative test results who are correctly diagnosed
 * Nuclear Polyhedrosis Virus, a virus that infects butterflies and moths
 * Negative Phase Velocity, an electromagnetic property induced by some exotic optical materials
 * Negative pressure ventilator, a type of mechanical ventilator that stimulates an ill person's breathing by periodically applying negative air pressure to their body to expand and contract the chest cavity.

Other uses:
 * De Nederlandse Padvinders (Netherlands Pathfinders), a precursor to Scouting Nederland, the national scouting organisation of the Netherlands