P. K. Yonge Developmental Research School is a K-12 public laboratory school of the University of Florida, in Gainesville, Florida, United States. The student population, selected by lottery, mirrors the demographics of the school-age population of the State of Florida.

Established in 1934 in Norman Hall on the University of Florida campus, P.K. Yonge is a one-school school district and also a department of the University of Florida College of Education. A laboratory school (reflected in the school's former name, the P.K. Yonge Laboratory School), the school's mission is to design, test, and disseminate innovations in K-12 education by serving a diverse student community. The school director is Brian K. Marchman, Ph.D., and the principal is Carrie Geiger, Ed.D. Faculty, in addition to teaching duties, are required to engage in formal research projects each year, which are presented at an annual Inquiry Symposium attended by all P.K. Yonge faculty and colleagues from the University of Florida College of Education.

P.K. Yonge is named in honor of Philip Keyes Yonge (1850–1934), who served 29 years on the Florida Board of Control (the former governing body for all Florida public universities), including 22 years as chairman of the board.

At the beginning of the 2012–13 school year, P.K. Yonge opened a state-of-the-art elementary school building, and continues to work towards total campus revitalization. The second phase of campus revitalization ended with the opening of a state-of-the-art secondary school building in 2021.

Teams at the school compete under the name "Blue Wave." Kelly Barrett was appointed as athletic director in the 2017–18 school year. The boys' basketball program won the state championship in 1991. The girls have won state championships four times: 1981, 1983, 2010, and 2012. The school has also won state titles in boys' cross country (1980), boys' track and field (1965, 2005, 2006, 2007), girls' track and field (2005), and girls' volleyball (2000, 2002, 2014, 2015).

P.K. Yonge's performing arts programs include a theatre department that hosts award-winning Thespian Troupe No. 4102 which competes yearly at Florida Thespian District 12 conferences and Florida State Thespian conferences. They have been known for presenting fall plays, spring musicals, and various public and student-created performance events. Students often audition for choirs.

The marching band at P.K. Yonge has competed in Florida Marching Band Championships (FMBCs) since it was established in 1997 as the Florida Marching Band Coalition. It is currently directed by Robert Marski since the 2018–19 school year. At FMBC 2018, the marching band received sixth place, with percussion winning their caption. At FMBC 2021, The PKY Band made the finals for the first time in school history, and placed third overall in class 1A states. In 2022, they repeated the same success, finishing third in class 2A. The Color Guard marches as a part of the Blue Wave Marching Band, and also competes in the winter season as the P.K. Yonge Winterguard.

P.K. Yonge developed a new official brand during the 2014–15 school year. There are two logos, an administrative/academic logo and an athletics logo which depicts the school's Blue Wave.

• Buildings at the University of Florida

• Official website
• P. K. Yonge Library of Florida history

29°38′26″N 82°20′7″W / 29.64056°N 82.33528°W / 29.64056; -82.33528