Emmett Jefferson Murphy III[1] (born December 21, 1964), professionally credited as both Patrick Murphy and Murph, is best known for being the drummer for the alternative rock band Dinosaur Jr.[2] He was a member of the group from its founding in 1984 through 1993, and since the original lineup reformed in 2005.

[3] Murph was initially the drummer in the hardcore punk band All White Jury.

[1] Deep Wound disbanded and Mascis, Barlow, and Murph formed Dinosaur Jr without Nakajima.

[2] In April 2005, Murph returned to Dinosaur Jr. with J Mascis and Lou Barlow, reforming the original line-up.

[4] He is the son of E. Jefferson Murphy, a Professor of African Studies at Smith College.