Priming effect may refer to:

• Priming (psychology)
• The priming effect of organic matter

• Ooperipatellus insignis
• Ooperipatellus nanus
• Ooperipatellus parvus
• Ooperipatellus viridimaculatus
• Ooperipatus
• Ooperipatus birrgus
• Ooperipatus caesius
• Ooperipatus centunculus
• Ooperipatus costatus
• Ooperipatus hispidus
• Ooperipatus lepidus
• Ooperipatus nebulosus
• Ooperipatus oviparus
• Ooperipatus porcatus
• Ooperipatus pulchellus
• Ooperipatus silvanus
• Oophagomyia
• Oophagomyia plotnikovi
• Oophorini
• Oophyte
• Oopik Pitsiulak
• Oopik Pitsuilak
• Oopjen Coppit
• Oopsacas olympicus
• Oops! All Berries