Purple Line

Purple Line may refer to:

Asia

 * Purple Line (Chennai Metro), Chennai, India
 * Purple Line (Namma Metro), Bangalore, India
 * Purple Line (Pune Metro), Pune, India
 * Purple Line (Bangkok), Thailand
 * North East MRT line, Singapore
 * Seoul Subway Line 5, Seoul, South Korea
 * Taoyuan Airport MRT, Taoyuan, Taiwan
 * Tseung Kwan O line, Hong Kong
 * Purple Line (Dubai Metro), Dubai Metro
 * Purple Line (Tel Aviv Light Rail), light-rail line under construction in Tel Aviv, Israel

United Kingdom

 * Sheffield Supertram Purple Line, a tram line in Sheffield, England
 * Crossrail, London, England

Germany

 * U6 (Berlin U-Bahn), Berlin

North America

 * Purple Line (CTA), an elevated train line in Chicago, Illinois, U.S.
 * Purple Line (Maryland), a transit line currently under construction in Maryland counties bordering Washington, D.C.
 * Purple Line (Mexico City Metro), Mexico
 * Purple Line (Mexico City Metrobús), Mexico
 * Purple Line (San Diego Trolley), a proposed light rail line in San Diego County, California, U.S.
 * Purple Line (Pittsburgh), Pittsburgh, Pennsylvania
 * LYNX Purple Line, a proposed commuter rail line in Charlotte, North Carolina
 * E Line (RTD), a light rail line in and near Denver, Colorado, U.S.
 * IRT Flushing Line, a rapid transit line in New York City, serving the 7 <7> trains
 * MBTA Commuter Rail or Purple Line, in the Boston area, Massachusetts, U.S.
 * Norristown High Speed Line or Purple Line, a light rail line near Philadelphia, Pennsylvania, U.S.
 * Line 4 Sheppard, a subway line in Toronto, Ontario, Canada
 * Viva Purple, a bus rapid transit line in the Regional Municipality of York, Ontario, Canada
 * D Line (Los Angeles Metro), a subway line in Los Angeles, California
 * Metro Purple Line (Minnesota), a bus rapid transit line in Saint Paul, Minnesota
 * SFO–Millbrae line, former rapid transit line serving San Francisco International Airport, California, U.S.
 * Purple Line (VTA), former light rail line in San Jose, California

Road transportation

 * Purple Belt (Pittsburgh), Pittsburgh, Pennsylvania

Other uses

 * Purple Line (ceasefire line), the 1967 ceasefire line on the Golan Heights
 * "Purple Line" (song), a 2008 song by TVXQ
 * The Purple Line, the debut novel of Indian author, Priyamvada N Purushotham
 * Line of purples, a part of the CIE chromaticity diagram