PGSS

PGSS may refer to:
 * Pennsylvania Governor's School for the Sciences
 * Paget Gorman Signed Speech
 * Prince George Secondary School, a high school in Prince George, British Columbia
 * Point Grey Secondary School, a high school in Vancouver, British Columbia
 * Panionios G.S.S., a Greek football club based in Nea Smyrni, Athens
 * Particles from Gas Saturated Solutions, a method used for micronization of substances