| Movie | 2022 | Plague at the Golden Gate | Narrator (voice) | |
| Movie | 1998 | Mulan | Mulan (singing voice) | |
| Movie | 1995 | Les Misérables: 10th Anniversary Concert at the Royal Albert Hall | Eponine | |
| Movie | 1981 | Tropang Bulilit | | |
| Movie | 2022 | Reopening: The Broadway Revival | Self | |
| Movie | 1995 | Second Chances | Agnes | |
| Movie | 1992 | Bakit Labis Kitang Mahal | Sandy | |
| Movie | 1995 | Redwood Curtain | Geri Riordan | |
| Movie | 2010 | Les Misérables: 25th Anniversary in Concert | Fantine | |
| Movie | 1998 | Hey, Mr. Producer! The Musical World of Cameron Mackintosh | Kim / Eponine | |
| Movie | 1989 | The Heat Is On: The Making of Miss Saigon | Self | |
| Movie | 2014 | To Be Takei | Self | |
| Movie | 2023 | Once Upon a Studio | Jasmine / Mulan (singing voice) | |
| Movie | 2023 | Season of Light: Christmas with the Tabernacle Choir | Self | |
| Movie | 2006 | Disney Princess Sing Along Songs, Vol. 3 - Perfectly Princess | Mulan (singing voice) | |
| Movie | 2005 | Disney Princess Sing Along Songs, Vol. 2 - Enchanted Tea Party | Mulan (voice) | |
| Movie | 1998 | From Legend To Life: The Making of Mulan | Self | |
| Movie | 2017 | Broadway: The Next Generation | Self | |
| Movie | 2007 | Disney Princess Enchanted Tales: Follow Your Dreams | Jasmine (singing voice) | |
| Movie | 1986 | Ninja Kids | Yoko | |
| Movie | 1986 | Captain Barbell | Rosemarie | |
| Movie | 2016 | Il Divo: Amor & Pasion Tour in Japan | Singer | |
| Movie | 1988 | Pik Pak Boom | Rosie | |
| Movie | 2021 | Lea Salonga - Live at Expo 2020 Dubai | Self | |
| Movie | 1992 | Aladdin | Jasmine (singing voice) | |
| Movie | 2004 | Disney Princess Sing Along Songs, Vol. 1 - Once Upon A Dream | Jasmine / Mulan (voice) | |
| Movie | 2004 | Mulan II | Mulan (singing voice) | |
| Movie | 2016 | Miss Saigon: 25th Anniversary Performance | Special Finale Guest Star | |
| Movie | 2016 | Allegiance | Kei Kimura | |
| Movie | 1989 | Dear Diary | Lenny Tacorda (segment "Dear Killer") | |
| Movie | 2013 | Les Misérables: The History of the World's Greatest Story | Self (archive footage) | |
| Movie | 2020 | Yellow Rose | Gail | |
| Movie | 2019 | Expedition Reef | Narrator (voice) | |
| Movie | 1992 | The Making of Aladdin: A Whole New World | Self | |
| Movie | 1995 | Aladdin on Ice | Jasmine (singing voice) (uncredited) | |
| Movie | 2002 | Lea Salonga: The Broadway Concert | Self | |
| Movie | 2021 | Musicals: The Greatest Show | Self | |
| Movie | 1985 | Like Father, Like Son | Angela | |
| Movie | 2024 | Bryant Park NYC Tree Lighting 2024 | Self | |
| Movie | 2021 | Show of Titles | "Promises, Promises" Performer | |
| Movie | 2014 | Il Divo: A Musical Affair - Live in Japan | Self | |
| Movie | 2025 | KPop Demon Hunters | Celine (Original Songs Performance) (voice) | |
| Movie | 2005 | Disney Princess: A Christmas of Enchantment | Jasmine (singing voice) | |
| Movie | 2026 | Forgotten Island | (voice) | |
| Movie | 2003 | Mickey's Philharmagic | Jasmine (voice, archival) | |
| TV Show | 1951 | Hallmark Hall of Fame | Geri Riordan | 1 |
| TV Show | 1971 | Great Performances | | 1 |
| TV Show | 1953 | The Oscars | Self | 1 |
| TV Show | 2021 | Centaurworld | Woman (voice) | 6 |
| TV Show | 2015 | Crazy Ex-Girlfriend | Aunt Myrna | 1 |
| TV Show | 1994 | ER | Amparo | 1 |
| TV Show | 1956 | Tony Awards | Self - Performer | 1 |
| TV Show | 1983 | Reading Rainbow | Self - Narrator (voice) | 2 |
| TV Show | 1988 | American Experience | Narrator | 1 |
| TV Show | 2022 | Pretty Little Liars: Original Sin | Elodie Honrada | 10 |
| TV Show | 2011 | The Song That Changed My Life | Herself | 1 |
| TV Show | 2013 | The Voice of the Philippines | Self - Coach | 68 |
| TV Show | 2017 | The Voice Teens | Self - Coach | 53 |
| TV Show | 2020 | Stars in the House | Self | 1 |
| TV Show | 2014 | The Voice Kids | Self - Coach | 102 |
| TV Show | 1971 | Great Performances | Eponine | 1 |
| TV Show | 1956 | Tony Awards | Self - Presenter | 1 |
