Year 1897 (MDCCCXCVII) was a common year starting on Friday (link will display the full calendar) of the Gregorian Calendar and a common year starting on Wednesday of the 12-day slower Julian calendar.
- June 1 – American miners begin a strike, which successfully establishes the United Mine Workers Union and brings about the 8-hour work day to mines.
- June 2 – Mark Twain, responding to rumors that he is dead, is quoted by the New York Journal as saying, "The report of my death was an exaggeration."
- June 16 – Fort Erie Racetrack in Fort Erie, Ontario, opens. The first race is won by Ellesmere, guided home by Sullivan.
- June 12 – The world's first Fingerprint Bureau opens in Calcutta (now Kolkata), India, after the Council of the Governor General approves a committee report that fingerprints should be used for classification of criminal records.
- June 22 – Queen Victoria celebrates her Diamond Jubilee.
- June 22 – British colonial officers Rand and Ayerst in Pune, Maharashtra, India are assassinated on their way back from a Government house party celebrating the diamond jubilee coronation anniversary of Queen Victoria, by the Chapekar brothers and Ranade, who are later caught and hanged. Considered the first martyrs to the cause of India's freedom from Britain. The film 22 June 1897 is based on the incident.