Samuel Latham Mitchill Barlow I (January 5, 1826 – July 10, 1889) was an American lawyer known for forming several legal partnerships, such as Bowdoin, Larocque & Barlow and Shipman, Barlow, Larocque. Barlow was also a major stakeholder in The New York World newspaper. Before passing the bar, he had studied by serving as seven years as an apprentice in a New York law practice.