| Year | Title | Role | Notes | Ref |
| 1964 | Mr. Novak | Lisa | Episode: "How Does Your Garden Grow?" | |
| 1964–1965 | Shindig! | Herself (Dancer) | Recurring role (5 episodes) | |
| 1965 | Dr. Kildare | Naomi | Episode: "With Hellfire and Thunder"; uncredited | |
| Hullabaloo | Herself – (Go-Go Dancer) | Episode: "#1.18"; uncredited | |
| Where the Action Is | Telegram Lady | Episode: "Pilot" | |
| 1966 | Batman | Girl Outside Rink | Episode: "Instant Freeze"; uncredited | |
| 1967–1968 | That Girl | Estelle / Actress #1 At Audition | 2 episodes; uncredited | |
| 1968 | The Andy Griffith Show | Girl in Red Convertible | Episode: "The Wedding"; credited as Terri Garr | |
| Star Trek | Roberta Lincoln | Episode: "Assignment: Earth"; credited as Terri Garr | |
| Mayberry R.F.D. | The Cashier | Episode: "Miss Farmerette"; credited as Terri Garr | |
| 1969 | The Mothers-In-Law | The Usherette | Episode: "Two on the Aisle"; credited as Terri Garr | |
| Room 222 | Marianne | Episode: "Naked Came We Into the World"; credited as Terry Garr | |
| It Takes a Thief | Maggie Philbin | 2 episodes; credited as Terry Garr | |
| 1970–1975 | McCloud | Sergeant Phyllis Norton / Nora Mullins / Bit Role | 6 episodes; credited as Terry Garr | |
| 1971–1974 | The Sonny and Cher Comedy Hour | Various Characters/ Countess Legustav | Recurring role (46 episodes) | |
| 1972 | The Ken Berry 'Wow' Show | Performer | Regular (1972) | |
| Banyon | Mabel | Episode: "A Date with Death" | |
| 1973 | The Burns and Schreiber Comedy Hour | Performer | Regular | |
| The New Dick Van Dyke Show | Waitress | Episode: "Turning Pro" | |
| 1973–1974 | The Bob Newhart Show | Miss Brennan | 2 episodes | |
| The Girl with Something Extra | Amber | Recurring role (4 episodes) | |
| 1973–1978 | M*A*S*H | Lieutenant Suzanne Marquette | 2 episodes | |
| 1974 | The Odd Couple | Insurance Agent | Episode: "The Flying Felix" | |
| Barnaby Jones | Maria Thompson | Episode: "Image in a Cracked Mirror" | |
| Paul Sand in Friends and Lovers | Sharon | Episode: "Fiddler in the House" | |
| 1975 | Cher | Olivia / Mrs. Oscar Smedley | 3 episodes | |
| Maude | Mrs. Carlson | Episode: "Viv's Dog" | |
| Hollywood Squares | Herself (Panelist) | 2 episodes | |
| 1976 | The Sonny and Cher Show | Olivia | Regular (1976–1977) | |
| Law & Order | Rita Wasinski | | |
| 1977 | Once Upon a Brothers Grimm | Princess | Television film; segment: "The Frog Prince" | |
| Hunter | Peg Foley | Episode: "The Backup" | [7] |
| 1979–1985 | Saturday Night Live! | Herself (Host), Diner Waitress | 5 episodes | |
| 1980 | Doctor Franken | Kelli Fisher | Television film | |
| 1982 | Prime Suspect | Amy McCleary | |
| Faerie Tale Theatre | Princess | Episode: "The Tale of the Frog Prince" | |
| 1983 | The Winter of Our Discontent | Mary Hawley | Television film | |
| 1984 | The New Show | Various Characters | Episode: "#1.5" | |
| To Catch a King | Hannah Winter | Television film | |
| 1985 | The Booth | Unknown | Television film; segment: "Death at Dinner" | |
| 1986 | Intimate Strangers | Sally Bierston | Television film | |
| Fresno | Talon Kensington | 5 episodes; miniseries | |
| Pack of Lies | Helen Schaefer | Television film | |
| 1987 | Trying Times | Robin Stone | Episode: "Drive, She Said" | |
| Sesame Street | Amelia | Episode: "#19.24" | |
| 1988 | Teri Garr in Flapjack Floozie | Helen Eagles | Television film | |
| 1990 | Mother Goose Rock 'n' Rhyme | Jill | |
| A Quiet Little Neighborhood, a Perfect Little Murder | Marsha Pegler | |
| 1991 | Tales from the Crypt | Irene Paloma | Episode: "The Trap" | |
| Stranger in the Family | Randi Thompson | Television film | |
| Good & Evil | Denise Sandler | 6 episodes | |
| Futures | Herself | Episode: "Math, Who Needs It?" | |
| 1992 | Deliver Them from Evil: The Taking of Alta View | Susan Woodley | Television film | |
| Dream On | Sandra McCadden | Episode: "And Bimbo Was His Name-O" | |
| 1993 | Murphy Brown | Herself | Episode: "Bump in the Night" | |
| The Legend of Prince Valiant | Selena | Voice, 2 episodes | |
| The Larry Sanders Show | Herself | Episode: "The Breakdown" | |
| Fugitive Nights: Danger in the Desert | Brita Burrows | Television film | |
| Adventures in Wonderland | Duchess | Recurring role (6 episodes) | |
| 1993–1998 | Jeopardy! | Herself (Celebrity Contestant) | 2 episodes | |
| 1994 | Duckman | Vanessa Le Pert | Voice, episode: "It's the Thing of the Principal" | |
| Good Advice | Paige Turner | Recurring role (13 episodes) | |
| Aliens for Breakfast | Mrs. Bickerstaff | Television film | |
| 1995 | Women of the House | Sissy Emerson | Recurring role (12 episodes) | |
| Frasier | Nancy | Voice, episode: "She's the Boss" | [5] |
| 1996 | Men Behaving Badly | Carol | Episode: "Christmas" | |
| 1997 | Murder Live! | JoAnn McGrath | Television film | |
| NightScream | Julie Ordell | |
| Sabrina, the Teenage Witch | Witch Yenta | Episode: "Dante's Inferno" | |
| 1997–1998 | Friends | Phoebe Abbott | 3 episodes | |
| 1998 | Sin City Spectacular | Unknown | Episode: "#1.15" | |
| Barney's First Adventure | Herself | Television film | |
| 1998–2002 | Biography | Herself (Interviewee) | 2 episodes; documentary | |
| 1999 | Half a Dozen Babies | Lee Dilley | Television film | |
| ER | Celinda Randlett | Episode: "Getting to Know You" | |
| Dr. Katz, Professional Therapist | Teri | Voice, episode: "Pullman Square" | [5] |
| 1999–2000 | Batman Beyond | Mary McGinnis | Voice, recurring role (10 episodes) | [5] |
| 2000 | King of the Hill | Laney | Voice, episode: "Bill of Sales" | |
| I've Got a Secret | Herself (Panelist) | | |
| 2001 | A Colder Kind of Death | Tess Malone | Television film | |
| Felicity | Dr. Zwick | Episode: "It's Raining Men" | |
| Strong Medicine | Mimi Stark | Episode: "Control Group" | |
| 2001–2002 | Hollywood Squares | Herself (Panelist) | 25 episodes | |
| 2002 | Mad TV | Herself | Episode: "#7.25" | |
| 2003 | What's New, Scooby-Doo? | Sandy Gordon | Voice, episode: "Toy Scary Boo" | |
| Life with Bonnie | Mrs. Abigail Portinbody | Episode: "Buy This Book" | |
| Greetings from Tucson | Helen | Episode: "Coffee" | |
| 2005 | Law & Order: Special Victims Unit | Minerva Grahame-Bishop | Episode: "Starved" | |
| 2006 | Crumbs | Lorraine Bergman | Episode: "He Ain't Hetero, He's My Brother" | |
| 2011 | How to Marry a Billionaire | Lindsey's Mom | Television film | |