Dennis Posa, aka Dennis Parker, aka Wade Nichols (October 28, 1946 – January 28 [?], 1985) was an actor and singer from Freeport, New York who started his career in pornographic movies.

His first feature film role was probably in the 1975 gay adult film Boynapped! He subsequently appeared mostly in straight porn films shot in New York such as Barbara Broadcast, Jail Bait, Summer of Laura, Punk Rock, Marishino Cherries, and Teenage Pajama Party. Posa was credited as Wade Nichols in most of the adult films in which he appeared.