Samuel Latham Mitchill Barlow I (January 5, 1826 – July 10, 1889) was an American lawyer who was admitted to the bar after spending seven years as an apprentice in a New York law practice.
Afterwards, he formed several notable legal partnerships, such as Bowdoin, Larocque & Barlow and Shipman, Barlow, Larocque.
Barlow was also a major stakeholder in The New York World newspaper.