The famous artist known for slicing off part of his own ear is Vincent van Gogh. This act is often associated with his tumultuous mental health struggles and emotional turmoil throughout his life. Van Gogh’s art was marked by vibrant colors and expressive brushwork, reflecting the deep pain and passion he experienced. His extreme emotional states resulted in both incredible artistic creativity and tragic self-harm, making his life a poignant story of artistry intertwined with mental health issues.