Tir (Persian: تیر, Persian pronunciation: [tiːɾ]^[1]) is the fourth month of the Solar Hijri calendar, which is the official calendar of Iran and Afghanistan.^[1] Tir has thirty-one days,^[1] spanning parts of June and July in the Gregorian calendar^{[citation needed]}. In Afghan Persian it is called Saraṭān (Cancer).

Tir is the first month of summer, and is followed by Amardad.^[1] Named after, Tishtrya, a Zoroastrian benevolent divinity associated with life-bringing rainfall and fertility.

• 14 - 1155 - The Second Continental Congress adopts the Declaration of Independence of the United States.
• 24 - 1168 - Storming of the Bastille
• 11 - 1246 - The British North America Act takes effect, marking the unification of the British Province of Canada, Nova Scotia, and New Brunswick into one Dominion of Canada.
• 2 - 1273 - International Olympic Committee established
• 1 - 1320 - World War II - Operation Barbarossa begins (Defense of Brest Fortress)
• 3 - 1324 - Moscow Victory Parade of 1945
• 7 - 1360 - Hafte Tir bombing in Tehran
• 4 - 1370 - Independence of Slovenia and Croatia from Yugoslav Federation; triggering the start of the Yugoslav War.
• 8 - 1374 - Sampoong Department Store collapse in South Korea
• 25 - 1395 - Attempted coup d'etat in Turkey

• 4 - 1392 - Taghi Rouhani, Iranian radio news anchor.
• 7 - 1360 - Mohammad Beheshti, one of the architects of the Islamic Republic of Iran
• 22 - 1391 - Hamid Samandarian, Iranian film and theater director and translator.
• 26 - 1390 - Rouhollah Dadashi, Iranian Powerlifter, Bodybuilder and Strongman.
• 29 - 1391 - Mohammad Hassan Ganji, an Iranian meteorologist and academic^{[citation needed]}.

• Olympic Day - 2 or 3 Tir
• Canada Day - 10 or 11 Tir
• Tirgan - 13 Tir
• Independence Day (United States) - 14 or 15 Tir
• Independence Day (Venezuela) - 15 or 16 Tir
• Mongolian State Flag Day - 18 or 19 Tir
• Naadam - 19/20 to 22/23 Tir
• Bastille Day - 24 or 25 Tir