This list is by no means 100%, though I'd like for it to be. If you know of a Tim Drake or Robin III appearance I haven't catalogued, please e-mail me!
Thanks. And additional thanks to Drew Harris, Adrienne Johansson, James Parkhurst and Tim Taylor (webmaster of Extreme Robin) who have all already provided assistance with these appearances to date.

Azrael: #1, 5, 10, 16, 56
Batgirl: #5
Batman: #436, 440-442, 450, 455-457, 465-469, 470-472, 480, 483-494, 496-501, 506-511, 0, 512-515, 521, 525-526, 529, 533, 542-543, 554-556, 559-562, 568, 571-573
Batman Annual: #15
Batman Chronicles: #2, 6-7, 9, 14, 20
Batman 80-Page Giant: #1-3
Batman & Huntress Cry For Blood: #1, 3
Batman Secret Files: #1
Batman: Bane one-shot
Batman: Gotham Knights #1, 5, 8-11
Batman: Legends of the Dark Knight #62, 120, 125-126
Batman: Mr. Freeze one-shot
Batman: No Man's Land #1
Batman: Penguin Triumphant one-shot
Batman: Seduction of the Gun #1
Batman: Shadow of the Bat #1-2, 7-9, 16, 29-31, 48-49, 53-54, 88, 91, 93-94
Batman/Wildcat: #1-3
Birds of Prey: #3, 19, 20, 21, 27
Birds of Prey: Manhunt: #3, 4
Bloodbath: #1, 2
Catwoman: #12, 25, 31, 36
Challengers of the Unknown: #11-12
DC Holiday Bash III
DC % Marvel All Access: #1-3
DC vs. Marvel: #1-4
Demon: #23, 24
Detective Comics: #615, 616, 618-621, 633, 644-651, 653, 657-662, 664-668,671, 676-677, 0, 679-683, 685-710, 712-715, 718, 719, 722-723, 1,000,000, 727-729, 738-741
Detective Comics Annual: #4
Final Night: #1-3
Flash: #100
Green Arrow: #134-135
Green Lantern: #81
Guide to the DC Universe 2000 Secret Files: #1
Hourman: #22
Impulse: #56
JLA: #5, 8-9
JLA: World Without Grown-Ups #1-2
JLA/Titans: #1-3
Justice League America: #70
Legion of Super heroes vol. 4: #99, 100
New Titans: #60-61, 100
Nightwing: #6, 20, 23, 25, 46
Nightwing Annual: #1
Resurrection Man: #26
Robin I: #1-5
Robin II: The Joker's Wild: #1-4
Robin III: Cry of the Huntress: #1-6
Robin: #0, 1 to present, and Annuals #1-6 (though not all of these Robin annuals are Tim Drake)
Robin/Argent Double-Shot: #1
Robin 80 Page Giant: #1
Robin Plus: #1-2
The Savage Dragon: #41 (cameo pictured only)
Secret Origins: Eighty-Page Giant: #1
Showcase '93: #2-3, 5-8, 10-12
Showcase '94: #5-6
Sins of Youth: Batboy and Robin #1
Sins of Youth: JLA Jr.: #1
Spectre (vol. 3): #22
Stars and S.T.R.I.P.E.: #5, 6
Superboy: #65, 74, 83
Supergirl: #36, 37
Superman: #70
Superman Y2K: #1
Superman: The Man of Steel: #14
Supermen of America: #5
Teen Titans: #4-5, 17
Titans: #12
Total Justice: #1-3
WF3: World's Finest 3: #1-2
Young Justice: #1 to Present
Young Justice: The Secret: #1
Young Justice Eighty-Page Giant: #1
Young Justice in No Man's Land: #1
Young Justice Secret Files: #1
Young Justice: Sins of Youth: #1, 2
Young Justice: Sins of Youth Secret Files: #1
Zero Hour: #4, 3, 2, 1, 0