Charlotte Grace O'Brien (1845–1909) was an Irish author, philanthropist, and activist who dedicated her life to social advocacy and nationalist causes. Active during the late nineteenth and early twentieth centuries, she is particularly remembered for her efforts to protect female emigrants, working to ensure their safety and well-being during a period of high emigration from Ireland.
Beyond her philanthropic and nationalist endeavors, O'Brien pursued diverse intellectual interests. She was an active writer and also gained recognition as a plant collector, contributing to the botanical studies of her time. Her life's work bridged the spheres of social reform, literature, and natural science, reflecting her multifaceted engagement with Irish society.
