Joshua Johnston, also known as Joshua Johnson, was one of the first recorded African American portrait painters in the United States. He was active during the late 18th and early 19th centuries. Johnston was born into slavery in the American South, but he gained his freedom and pursued a career as a portrait artist in Baltimore, Maryland.

Despite facing significant challenges and discrimination due to his race, Johnston's talent as a painter allowed him to earn a living and gain recognition for his work. His portraits often depicted prominent individuals and families in Baltimore society, showcasing his skill in capturing the likeness and character of his subjects.

Joshua Johnston's legacy as a pioneering African American artist has grown in recent years, with efforts to uncover more about his life and career. His work serves as a reminder of the artistic contributions of Black Americans throughout history, despite the obstacles they faced.