Martha Johnson

Martha Johnson may refer to:


 * Martha Johnson (singer) (born 1950), Canadian pop singer and songwriter
 * Martha Johnson, 8th Baroness Wentworth (1667–1745), English baroness
 * Martha Ann Johnson (born 1955), American serial killer
 * Martha N. Johnson (born 1952), American former administrator of the U.S. General Services Administration
 * Martha Johnson Patterson (1828–1901), American daughter of U.S. President Andrew Johnson