1985-April

• April 1
  • Two Japanese government-owned corporations, Nippon Telegraph and Telephone Public Corporation, and Japan Tobacco and Salt Public Corporation, are privatized and change their names to Nippon Telegraph and Telephone, and Japan Tobacco.
  • Eighth seeded Villanova defeats national powerhouse Georgetown 66–64 to win the first 64 team field NCAA Tournament in Lexington, Kentucky.
• April 11 – The USS Coral Sea collides with the Ecuadorian tanker ship Napo off the coast of Cuba.
• April 12: 1985 El Descanso bombing: A terrorist bombing attributed to the Islamic Jihad Organization in the El Descanso restaurant near Madrid, Spain, mostly attended by U.S. personnel of the Torrejon Air Force Base, causes 18 dead (all Spaniards) and 82 injured.
• April 15 – South Africa ends its ban on interracial marriages.
• April 18 – The United Kingdom has its first ever national Glow-worm day.
• April 19 – The U.S.S.R performs a nuclear test at Eastern Kazakhstan.
• April 21 – Brazilian President Tancredo Neves dies, he is succeeded by Jose Sarney.
• April 23 – Coca-Cola changes its formula and releases New Coke. (The response is overwhelmingly negative, and the original formula is back on the market in less than 3 months.)
• April 28 – The Australian Nuclear Disarmament Party (NDP) splits.