List of former Maryland state highways

There are six lists of former Maryland state highways split by number ranges:
 * List of former Maryland state highways (2–199)
 * List of former Maryland state highways (200–399)
 * List of former Maryland state highways (400–499)
 * List of former Maryland state highways (500–599)
 * List of former Maryland state highways (600–699)
 * List of former Maryland state highways (700–999)