PLAA

PLAA or Plaa can refer to:

People

 * Martin Plaa (1901 – 1978), a French tennis player
 * Gabriel L. Plaa (1930 – 2009), an American-Canadian toxicologist

Other uses

 * Poor Law Amendment Act 1834, an 1834 UK law denying the right to feed the poor
 * People's Liberation Army Army, the land forces of the People's Liberation Army in China
 * Phospholipase A-2-activating protein, a human gene