| Song Title | Source | Composer(s) |
| It's Magic | Romance on the High Seas
| Styne |
| It's Martin Guerre |
| |
| It's Me | Me and Juliet
| Rodgers |
| It's Me They Talk About | Karl Marx Play, The
| MacDermot |
| It's Much Too Nice to Cut | Gift Of The Magi, The
| Adler |
| It's My Belief | Inner City
| Miller |
| It's My Downfall | Romulus Hunt
| Simon |
| It's My House | Open House
| Kraemer, Melton |
| It's My Neighborhood | Saturday Night Fever
| Gibb, Gibb, Gibb, various |
| It's My Party | Stop in the Name of Love
| various |
| It's My Party | Beehive
| various |
| It's Never Easy | Great American Trailer Park Musical, The
| Nehls |
| It's Never Quite the Same | Oh Captain!
| Livingston, Evans |
| It's Never That Easy | Closer Than Ever
| Shire |
| It's Never Too Late to Fall in Love | Boy Friend, The
| Wilson |
| It's Never Too Late to Mendelssohn | Lady in the Dark
| Weill |
| It's Nice | Pardon My Prejudice
| Wild |
| It's Nice That You're Still Here | Invade My Privacy
| various |
| It's Nice to Be Home Again | Listen to the Wind
| Ellis |
| It's Nice to Have Someone to Love You | Farmer Weds A Widow, The
| Bierman |
| It's Nice Weather for Ducks | Invade My Privacy
| various |
| It's Nicer in Nice | Boy Friend, The
| Wilson |
| It's No Problem | High Fidelity
| Kitt |
| It's No Problem (Reprise) | High Fidelity
| Kitt |
| It's None of My Business | Fine & Private Place, A
| Isen |
| It's Not a Commercial, It's Art | Madison Avenue
| Cherpakov |
| It's Not a Real Wedding | Catch Me if I Fall
| Schottenfeld |
| It's Not All Right | Striking 12
| Sheinkin, Milburn, Vigoda |
| It's Not Easy | Pete's Dragon
| Kasha, Hirschhorn |
| It's Not Easy Being King | Raggedy Ann
| Raposo |
| It's Not Easy Being Me | Popeye
| Nilsson |
| It's Not Easy to Love You | America the Beautiful
| Volpintesta |
| It's Not Irish | Juno
| Blitzstein |
| It's Not My Fault | Scrooge
| Bricusse |
| It's Not My Fault (Reprise) | Scrooge
| Bricusse |
| It's Not My Idea of a Gig | Miss Gulch Returns
| Barton |
| It's Not Supposed To Move | Brilliant the Dinosaur
| Stilgoe |
| It's Not the End of the World | Song and Dance
| Lloyd Webber |
| It's Not The End Of The World (If He's Married) | Song and Dance
| Lloyd Webber |
| It's Not the End of the World (If He's Younger) | Song and Dance
| Lloyd Webber |
| It's Not The End Of The World (If I Lose Him) | Song and Dance
| Lloyd Webber |
| It's Not Too Late | Romance Romance
| Herrmann |
| It's Not Too Late (Reprise) | Romance Romance
| Herrmann |
| It's Not Where You Start | Seesaw
| Coleman |
| It's Not Working out | Five After Eight
| Bitterman |
| It's Now Or Never | All Shook Up
| various |
| It's Old To Some But New To Me | Wayward Way, The
| Huycke |
| It's Only a Paper Moon | Take a Chance
| Brown, Whiting |
| It's Only a Play | Birds of Paradise
| Evans |
| It's Only a Play (Parabasis: It's Only a Play) | Frogs, The
| Sondheim |