Significant dates in labour history.
- July 01 - The Great Railroad Strike of 1922 began in the U.S.; the Regina Riot occurred during the On-to-Ottawa Trek in Canada in 1935; Lee Pressman was born; P. H. McCarthy died; the Textile, Clothing and Footwear Union of Australia was founded; the Westmoreland County coal strike of 1910–11 ended in the U.S.
- July 02 - William J. McCarthy was born; Edward Ikem Okeke died; the U.S. Supreme Court decided Brown v. Hotel and Restaurant Employees
- July 03 - The United States Army began suppression of the American Railway Union during the Pullman Strike in 1894
- July 04 - The Freedom of Association and Protection of the Right to Organise Convention came into force
- July 05 - "Bloody Thursday" occurred during the 1934 West Coast waterfront strike in the U.S.
- July 06 - Peter J. McGuire was born; the Homestead Strike culminated with a battle between Pinkerton agents and striking workers
- July 07 - Eugene V. Debs was arrested during the Pullman Strike in 1894; the 1998 Puerto Rican general strike began
- July 08 - Jesse Simons died
- July 09 - Jackie Presser died; the Transport Workers Union of America won the "Squeegee Strike" at the IRT in 1935
- July 10 - Sidney Hillman died; George W. Taylor was born; Donald Richberg was born
- July 11 - Frank Duffy died; Sigurd Lucassen was born
- July 12 - The British Columbia Teachers' Federation was founded; Arnold Miller died; Clara Lemlich died; Edgar Nixon was born; the Bisbee Deportation occurred in the U.S. in 1917
- July 13 - The U.S. Steel recognition strike of 1901 began
- July 14 - The Great Railroad Strike of 1877 began in the U.S.
- July 15 - The Steel strike of 1959 began in the U.S.; Set Persson died; Michael Costa was born; the Vancouver Police Union was founded
- July 16 - Frank Rudolph Crosswaith was born
- July 17 - The Cape Breton coal strike of 1981 began in Canada
- July 18 - William J. McCarthy defeated Weldon Mathis as Teamsters president in 1988; Robert Georgine was born; the Right to Organise and Collective Bargaining Convention, 1949, one of the two primary labour conventions of the ILO, came into force
- July 19 - The Hatch Act of 1939 was extended to cover state and local government workers in the U.S.; Benjamin Gitlow died; Rhoda Williams died
- July 20 - The Newsboys' strike of 1899 began
- July 22 - Patrick J. Campbell was born; the 2004–05 NHL lockout ended in the U.S. and Canada
- July 23 - Emma Tenayuca died
- July 24 - The 1952 steel strike ended in the U.S.; Ben Gold died; the Alliance for Labor Action is formed
- July 25 - Farrell Dobbs was born; the Service Employees International Union and the Teamsters announced their intention to leave the AFL–CIO; labor attorney Arthur Goldberg resigned as Associate Justice of the United States Supreme Court
- July 26 - Elias Motsoaledi was born; William Trenwith died; the Americans with Disabilities Act of 1990, banning workplace discrimination based on disability, became law
- July 27 - The Polish film Man of Iron was released in 1981
- July 28 - Harry Bridges was born; the 1913 Paterson silk strike ended in the U.S.; Florence Cohen was born
- July 29 - The Sailors' Union of the Pacific was formed; the United Food and Commercial Workers disaffiliated from the AFL–CIO
- July 30 - Jimmy Hoffa disappeared in 1975; the Arizona copper mine strike of 1983 began in the U.S.
- July 31 - Edward T. Hanley resigned as president of HERE after a corruption scandal