Eastside High School (EHS) is a public high school located in Taylors, a suburb of Greenville, South Carolina, United States. It is a public school under the jurisdiction of the Greenville County School District.

Eastside has had 14 principals throughout its history.

• John Durr: 1970–1973
• Eddie Jones: 1973–1975
• Leonard Pellicer: 1975–1977
• J. Brodie Bricker: 1977–1987
• Betty Workman: 1987–1988
• Lacy Wilkins: 1988–1993
• Ken Peake: 1993–1995
• Dave Quick: 1995–1998
• Buddy Blackmon: 1998–2000
• Sheryl Taylor: 2000–2006
• John Tharp: 2006–2010
• Michael Thorne: 2010–2019
• Tina Bishop: 2019–2024
• Todd Stafford: 2024-present

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Eastside High School's teams have won over 51 state championships. Eastside's athletics is most noted for wrestling, soccer, cross country, swimming, volleyball, and basketball.

• Cheerleading: 1996, 1999, 2000, 2002, 2004
• Football: 1977
• Boys cross country: 1987, 1988
• Boys golf: 2009
• Boys soccer: 1983, 1985, 1986, 2005, 2011, 2014, 2022
• Boys swimming: 2015, 2016, 2017, 2018, 2019
• Girls cross country: 2011, 2016
• Girls soccer: 1998, 2000, 2003, 2007, 2023
• Girls swimming: 2017, 2018, 2019
• Girls tennis: 1980
• Girls volleyball: 2011, 2015
• Wrestling: 2000, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2012, 2013, 2016, 2017, 2018, 2019, 2020, 2021, 2022
• Boys Tennis 2016, 2018
• Baseball: 2019, 2022

• Joe Erwin — entrepreneur and politician from South Carolina
• André Goodman — former NFL cornerback, played college football at the University of South Carolina