| K | Title | Mag | # | Date | Year | Repr |
| K | Kal-El II’s Mission to Krypton | Superman | 222 | Dec-69 | 1969 | R |
| Kal-El II’s Mission to Krypton | 80 Page Giant Magazine | G66 | Dec/Jan-70 | 1970 | R |
| Kal-El’s Mission To Krypton | Superman | 166 | Jan-64 | 1964 | |
| The Kid Who Knocked Out Superboy! | Superboy | 104 | Apr-63 | 1963 | |
| King Olsen’s Private Island! | Superman’s Pal, Jimmy Olsen | 85 | Jun-65 | 1965 | |
| The Kryptonite Killer | Action Comics | 294 | Nov-62 | 1962 | L |
| L | Lana Lang, Super-Girl | Adventure Comics | 167 | Aug-51 | 1951 | |
| Land of the Pharaohs! | Superboy | 103 | Mar-63 | 1963 | M |
| The Last Stand of the Legion | Adventure Comics | 310 | Jul-63 | 1963 | |
| The Last Stand of the Legion | Adventure Comics Digest | 500 | Jun-83 | 1983 | R |
| The Laws That Backfired | Adventure Comics | 172 | Jan-52 | 1952 | |
| The Legion of Substitute Heroes | Adventure Comics | 306 | Mar-63 | 1963 | M |
| The Legion of Substitute Heroes | DC Special Blue Ribbon Digest | 1 | Mar/Apr-80 | 1980 | R |
| The Legion of Substitute Heroes | Adventure Comics Digest | 500 | Jun-83 | 1983 | R |
| The Legion of Super Monsters | Adventure Comics | 309 | Jun-63 | 1963 | |
| The Legion of Super-Monsters | Adventure Comics Digest | 500 | Jun-83 | 1983 | R |
| The Legion of Super-Outlaws | Adventure Comics | 324 | Sep-64 | 1964 | |
| The Legion of Super-Outlaws | DC 100-Page Super Spectacular | DC-8 | Jan-72 | 1972 | R |
| The Legion of Super-Outlaws | Best of DC, The | 57 | Feb-85 | 1985 | R |
| The Legionnaire Dropouts | Adventure Comics | 337 | Oct-65 | 1965 | |
| The Legionnaire Dropouts | Best of DC, The | 67 | Dec-85 | 1985 | R |
| The Legionnaire Who Killed! | Adventure Comics | 342 | Mar-66 | 1966 | |
| The Legionnaire Who Killed! | Superboy | 202 | Jun-74 | 1974 | R |
| The Legionnaires Super-Contest | Adventure Comics | 315 | Dec-63 | 1963 | |
| The Legionnaires Super-Contest | Adventure Comics Digest | 501 | Jul-83 | 1983 | R |
| The Legion’s Suicide Squad! | Adventure Comics | 319 | Apr-64 | 1964 | |
| The Legion’s Suicide Squad! | Best of DC, The | 44 | Jan-84 | 1984 | R |
| The Legion’s Super-Showdown | Adventure Comics | 309 | Jun-63 | 1963 | |
| The Legion’s Super-Showdown | Adventure Comics Digest | 500 | Jun-83 | 1983 | R |
| The Life of Superman | Superman | 70 | May/Jun-51 | 1951 | |
| The Living Automobile | Strange Adventures | 79 | Apr-57 | 1957 | M |
| The Living Bat-Plane! | Batman | 228 | Feb-71 | 1971 | R |
| The Living Batplane | 80 Page Giant Magazine | G79 | Jan/Feb-71 | 1971 | R |
| The Living Bat-Plane | Batman | 91 | Apr-55 | 1955 | |
| Lois Lane’s Flight From Earth | Superman | 159 | Feb-63 | 1963 | M |
| The Lone Wolf Legionnaire! | Adventure Comics | 327 | Dec-64 | 1964 | |
| The Lone Wolf Legionnaire! | Superboy | 178 | Oct-71 | 1971 | R |
| The Lone Wolf Legionnaire! | Best of DC, The | 33 | Feb-83 | 1983 | R |
| The Lone Wolf Legionnaire! | Best of DC, The | 57 | Feb-85 | 1985 | R |
| The Lord of Batmanor | Detective Comics | 198 | Aug-53 | 1953 | |
| The Lord of Batmanor | Batman Annual | 2 | 1961 | 1961 | R |
| The Lost Earthmen | Strange Adventures | 7 | Apr-51 | 1951 | |
| The Lost Secrets of Krypton | Superman | 74 | Jan/Feb-52 | 1952 | M |
| Luthor–Super-Hero | Superman | 168 | Apr-64 | 1964 | |
| The Luthor-Superman | Superman | 175 | Feb-65 | 1965 | M |
| M | The Man From the Phantom Zone | Action Comics | 336 | Apr-66 | 1966 | |
| The Man Who Could See the Future | Detective Comics | 133 | Mar-48 | 1948 | |
| The Man Who Knew Batman’s Secret | Batman | 104 | Dec-56 | 1956 | |
| The Man Who Stole the Oceans | Superman | 71 | Jul/Aug-51 | 1951 | |
| The Man Who Stopped Space Flight | Action Comics | 167 | Apr-52 | 1952 | |
| The Man Who Walked Through Walls | Mystery in Space | 4 | Oct/Nov-51 | 1951 | |
| The Man with Four Minds | Strange Adventures | 69 | Jun-56 | 1956 | |
| The Man With Four Minds | Strange Adventures | 209 | Feb-68 | 1968 | R |
| The Man with the Charmed Life | Action Comics | 137 | Oct-49 | 1949 | |
| The Manhunter From Mars | Batman | 78 | Aug/Sep-53 | 1953 | |
| The Manhunters from Earth | 80 Page Giant Magazine | G76 | Oct/Nov-70 | 1970 | R |
| The Map of Mystery | Batman | 91 | Apr-55 | 1955 | |
| The Map of Mystery | Batman Annual | 6 | Winter-64 | 1964 | R |
| [The Master’s Meteor] | America’s Best Comics | 14 | Jun-45 | 1945 | |
| The Men of Fire | Superman | 80 | Jan/Feb-53 | 1953 | |
| The Menace of Beast Boy | Adventure Comics | 339 | Dec-65 | 1965 | |
| The Menace of Dream Girl | Adventure Comics | 317 | Feb-64 | 1964 | |
| The Menace of Dream Girl | Adventure Comics Digest | 502 | Aug-83 | 1983 | R |
| The Menace of the Green Nebula | Strange Adventures | 1 | Aug/Sep-50 | 1950 | |
| The Menace of the Machine Men | Superman | 57 | Mar-Apr/49 | 1949 | |
| The Mental Giant of Gotham City | Detective Comics | 217 | Mar-55 | 1955 | |
| The Mental Giant of Gotham City | Batman Annual | 3 | Summer-62 | 1962 | R |
| The Metal World | Strange Adventures | 3 | Dec-50 | 1950 | |
| The Micro-Men | Mystery in Space | 2 | Jun/Jul-51 | 1951 | |
| The Midget Menace | Superman | 102 | Jan-56 | 1956 | |
| The Midget Menace | Best of DC, The | 42 | Nov-83 | 1983 | R |
| The Mightiest Team In the World | Superman | 76 | May/Jun-52 | 1952 | |
| The Mightiest Team in the World | 80 Page Giant Magazine | G52 | Oct/Nov-68 | 1968 | R |
| The Mightiest Team in the World | World’s Finest | 179 | Oct-68 | 1968 | R |
| The Mightiest Team in the World | Superman From the 30’s to the 70’s | 1 | 1970 | 1970 | R |
| The Missing Moon | Strange Adventures | 11 | Aug-51 | 1951 | |
| The Monster from Krypton | Action Comics | 303 | Aug-63 | 1963 | |
| The Monster from Krypton | Adventure Comics | 420 | Jun-72 | 1972 | R |
| The Monster Who Loved Lois Lane! | Superman’s Girl Friend, Lois Lane | 54 | Jan-65 | 1965 | |
| The Monster Who Loved Lois Lane! | Superman’s Girl Friend, Lois Lane | 113 | Sep/Oct-71 | 1971 | R |
| The Monster Who Loved Lois Lane | 80 Page Giant Magazine | G87 | Sep/Oct-71 | 1971 | R |
| Movie Men From Mars | Strange Adventures | 55 | Apr-55 | 1955 | |
| The Mutiny of the Legionnaires | Adventure Comics | 318 | Mar-64 | 1964 | |
| The Mutiny of the Legionnaires | Adventure Comics Digest | 503 | Sep-83 | 1983 | R |
| Muto– Monarch of Menace | Action Comics | 338 | Jun-66 | 1966 | |
| Muto vs. the Man of Tomorrow | Action Comics | 339 | Jul-66 | 1966 | |
| Muto Vs. the Man of Tomorrow | Superman | 248 | Feb-71 | 1971 | R |
| Muto, Monarch of Menace | Superman | 247 | Jan-71 | 1971 | R |
| The Mystery of the Four Batmen | Batman | 88 | Dec-54 | 1954 | |
| The Mystery of the Four Batmen | Batman Annual | 6 | Winter-64 | 1964 | R |
| Mystery of the Sky Museum | Batman | 94 | Sep-55 | 1955 | |
| Mystery of the Sky Museum | Batman Annual | 6 | Winter-64 | 1964 | R N |
| N | The New Nightwing and Flamebird | Superman | 166 | Jan-64 | 1964 | |
| The New Nightwing and Flamebird | Superman | 222 | Dec-69 | 1969 | R |
| The New Nightwing and Flamebird | 80 Page Giant Magazine | G66 | Dec/Jan-70 | 1970 | R |
| The New Superman | Superman | 172 | Oct-64 | 1964 | |
| The New Terrific Team | World’s Finest | 147 | Feb-65 | 1965 | |
| The New Year’s Eve of 2000 A.D. | Mystery in Space | 38 | Jun/Jul-57 | 1957 | |
| The Nightmare Ordeal of Superman | Superman | 171 | Aug-64 | 1964 | |
| The Nine Lives of Jimmy Olsen! | Superman’s Pal, Jimmy Olsen | 71 | Sep-63 | 1963 | |
| Nine Worlds Hotel | Action Comics | 191 | Apr-54 | 1954 | O |
| O | The Olsen-Robin Team Vs the Superman-Batman Team | World’s Finest | 141 | May-64 | 1964 | |
| One Corpse Too Many | America’s Best Comics | 15 | Oct-45 | 1945 | |
| The Ordeal of Pete Ross! | Superboy | 106 | Jul-63 | 1963 | |
| Origin of the Superman Batman Team | World’s Finest | 94 | May/Jun-58 | 1958 | |
| Origin of the Superman-Batman Team | 80 Page Giant Magazine | G52 | Oct/Nov-68 | 1968 | R |
| Origin of the Superman-Batman Team | World’s Finest | 229 | Apr-75 | 1975 | R |
| The Origin of the Superman-Batman Team | Secret Origins | 1 | Summer-61 | 1961 | R |
| The Origin of the Superman-Batman Team | World’s Finest | 179 | Oct-68 | 1968 | R |
| The Origin of the Superman-Batman Team | DC Special Series | 19 | Fall-79 | 1979 | R |
| The Origin of the Superman-Batman Team | Greatest Batman Stories Ever Told, The | 1 | 1988 | 1988 | R |
| The Origin of the Superman-Batman Team | Secret Origins Replica Edition | 1 | 1998 | 1998 | R |