Hartline

Hartline may refer to:


 * Hartline, Washington, town, United States
 * HARTline, the brand name for Hillsborough Area Regional Transit, Florida, United States

People with the surname

 * Beverly Karplus Hartline (born 1950), American physicist
 * Brian Hartline (born 1986), American football wide receiver
 * Haldan Keffer Hartline (1903–1983), American Nobel Prize in Physiology or Medicine winner
 * Mary Hartline (1927–2020), American actress
 * Mike Hartline (born 1988), American football quarterback