John Lewis Griffiths (October 7, 1855 – May 17, 1914), was an American lawyer and diplomat.

[4] He was writing a biography of William Henry Harrison at the time of his death in 1914.

[5][6] He died suddenly, from an apparent heart attack,[7] in London in 1914, aged 58 years.

[2] His funeral was held in New York City, and his grave is in Brooklyn's Green-Wood Cemetery.

[8] His widow edited a collection of his speeches, The Greater Patriotism, published in 1918.