Mary "Molly" Teiko Oyama Mittwer (1907–1994) was a Japanese American journalist and community organizer who is best known for covering controversial topics such as social reform, dating and marriage, racism and integration. Throughout the 1930s and 1940s, Oyama Mittwer wrote articles to help fellow Nisei Japanese Americans navigate the political and social complexities of the day and to promote multiracial and cross-cultural solidarity among activists of different racial and ethnic backgrounds. She wrote advice columns, articles, interviews, and poetry for major Japanese-American newspapers and journals, including but not limited Rafu Shimpo, Kashu Mainichi, Nichibei, Shin-Sekai, The New World Sun, Leaves, Gyo-Sho, Nisei magazine Current Life, and the Common Ground journal, which focused on giving minoritized racial groups a platform.