Dit is een lijst met afleveringen van de Amerikaanse televisieserie Welcome Back, Kotter. De serie telt 4 seizoenen. Een overzicht van alle afleveringen is hieronder te vinden.
| Nr. | Titel aflevering | Uitzenddatum VS |
| 1 | The Great Debate | 9 september 1975 |
| 2 | Basket Case | 16 september 1975 |
| 3 | Welcome Back (Pilot) | 23 september 1975 |
| 4 | Whodunnit? | 30 september 1975 |
| 5 | The Election | 7 oktober 1975 |
| 6 | No More Mr. Nice Guy | 14 oktober 1975 |
| 7 | Classroom Marriage | 21 oktober 1975 |
| 8 | One of Our Sweathogs Is Missing | 28 oktober 1975 |
| 9 | Mr. Kotter, Teacher | 4 november 1975 |
| 10 | The Reunion | 18 november 1975 |
| 11 | Barbarino's Girl | 25 november 1975 |
| 12 | California Dreamin' | 2 december 1975 |
| 13 | Arrividerci, Arnold | 16 december 1975 |
| 14 | The Longest Weekend | 6 januari 1976 |
| 15 | The Sit-In | 13 januari 1976 |
| 16 | Follow the Leader | 20 januari 1976 |
| 17 | Follow the Leader: Part 2 | 22 januari 1976 |
| 18 | Dr. Epstein, I Presume | 29 februari 1976 |
| 19 | One Flu Over the Cuckoo's Nest | 5 februari 1976 |
| 20 | The Telethon | 12 februari 1976 |
| 21 | Kotter Makes Good | 19 februari 1976 |
| 22 | Father Vinnie | 26 februari 1976 |
| Nr. | Titel aflevering | Uitzenddatum VS |
| 1 | Career Day | 23 september 1976 |
| 2 | Inherit the Halibut | 30 september 1976 |
| 3 | Sweatside Story | 7 oktober 1976 |
| 4 | The Fight | 21 oktober 1976 |
| 5 | The Museum | 28 oktober 1976 |
| 6 | Gabe Under Pressure | 4 november 1976 |
| 7 | Sweathog, Nebraska Style | 11 november 1976 |
| 8 | Sadie Hawkins Day | 18 november 1976 |
| 9 | Hello Ms. Chips | 2 december 1976 |
| 10 | Horshack vs. Carvelli | 9 december 1976 |
| 11 | Sweathog Clinic for the Cure of Smoking | 16 december 1976 |
| 12 | Hark, the Sweatkings | 23 december 1976 |
| 13 | A Love Story | 30 december 1976 |
| 14 | Caruso's Way | 6 januari 1977 |
| 15 | Sweatgate Scandal | 13 januari 1977 |
| 16 | Kotter and Son | 20 januari 1977 |
| 17 | Chicken a la Kotter | 27 januari 1977 |
| 18 | Has Anyone Seen Arnold? | 3 februari 1977 |
| 19 | There Goes Number 5 | 3 februari 1977 |
| 20 | The Littlest Sweathog | 10 februari 1977 |
| 21 | Radio Free Freddie | 17 februari 1977 |
| 22 | I'm Having Their Baby | 24 februari 1977 |
| 23 | I Wonder Who's Kissing Gabe Now | 3 maart 1977 |
| Nr. | Titel aflevering | Uitzenddatum VS |
| 1 | Sweathog Back-to-School Special | 10 september 1977 |
| 2 | And Baby Makes Four: Part 1 | 15 september 1977 |
| 3 | And Baby Makes Four: Part 2 | 15 september 1977 |
| 4 | And Baby Makes Four: Part 3 | 22 september 1977 |
| 5 | Brother, Can You Spare a Million? | 29 september 1977 |
| 6 | Just Testing | 13 oktober 1977 |
| 7 | The Deprogramming of Arnold Horshack | 13 oktober 1977 |
| 8 | What a Move | 20 oktober 1977 |
| 9 | A Novel Idea | 3 november 1977 |
| 10 | Barbarino in Love: Part 1 | 3 november 1977 |
| 11 | Barbarino in Love: Part 2 | 10 november 1977 |
| 12 | Kotter for Vice Principal | 17 november 1977 |
| 13 | Swine and Punishment | 8 december 1977 |
| 14 | Epstein's Madonna | 8 december 1977 |
| 15 | Sweathog Christmas Special | 5 januari 1978 |
| 16 | Sweatwork | 19 januari 1978 |
| 17 | Meet Your New Teacher: Batteries Not Included | 5 januari 1978 |
| 18 | Angie | 22 december 1977 |
| 19 | Epstein's Term Paper | 19 januari 1978 |
| 20 | There's No Business Like Show Business: Part 1 | 26 januari 1978 |
| 21 | There's No Business Like Show Business: Part 2 | 2 februari 1978 |
| 22 | What Goes Up | 23 februari 1978 |
| 23 | Good-bye Mr. Kripps | 16 februari 1978 |
| 24 | Horshack and the Madame X | 18 mei 1978 |
| 25 | The Kiss | 9 maart 1978 |
| 26 | The Return of Hotsy Totsy | 11 mei 1978 |
| 27 | Class Encounters of the Carvelli Kind | 18 mei 1978 |
| Nr. | Titel aflevering | Uitzenddatum VS |
| 1 | The Drop-Ins: Part 1 | 11 september 1978 |
| 2 | The Drop-Ins: Part 2 | 11 september 1978 |
| 3 | Beau's Jest | 18 september 1978 |
| 4 | Don't Come Up and See Me Sometime | 11 september 1978 |
| 5 | Once Upon a Ledge | 2 oktober 1978 |
| 6 | The Sweatmobile | 9 oktober 1978 |
| 7 | Barbarino's Boo-boo | 21 oktober 1978 |
| 8 | X-Rated Education | 28 oktober 1978 |
| 9 | The Barbarino Blues | 4 november 1978 |
| 10 | Washington's Clone | 11 november 1978 |
| 11 | Frog Day Afternoon | 9 oktober 1978 |
| 12 | A Little Fright Music | 2 december 1978 |
| 13 | A Winter's Coat Tale | 16 december 1978 |
| 14 | Bride and Gloom | 13 januari 1979 |
| 15 | Barbarino's Baby | 3 februari 1979 |
| 16 | The Good-bye Guy | 10 februari 1979 |
| 17 | Come Back, Little Arnold | 24 februari 1979 |
| 18 | The Sweat Smell of Success | 3 maart 1979 |
| 19 | The Gang Show | 17 maart 1979 |
| 20 | Oo, Oo, I Do: Part 1 | 25 mei 1979 |
| 21 | Oo-Oo, I Do: Part 2 | 25 mei 1979 |
| 22 | I'm Okay, But You're Not | 1 juni 1979 |
| 23 | The Breadwinners | 8 juni 1979 |
French
Deutsch