| Song Title | Source | Composer(s) |
| It's All Right for You (The Work Song) | Hired Man, The
| Goodall |
| It's All Right to Cry | Free To Be... You and Me
| various |
| It's All Right with Me | Can-Can
| Porter |
| It's All the Same | Man of La Mancha
| Leigh |
| It's All the Same To Me | Demigod of E. 78th St.
| Bitterman |
| It's Almost Time Now | Underworld
| Moross |
| It's Alright | Take It Easy
| Fox |
| It's Always Love | Sugar
| Styne |
| It's an Art | Working
| Birkenhead, Carnelia, Grant, Rodgers, Schwartz, Taylor |
| It's an Old Spanish Custom | Carnival in Flanders
| Van Heusen |
| It's Bad for Me | Nymph Errant
| Porter |
| It's Been a Long, Long Time |
| |
| It's Been a Long, Long Time | White Cliffs Of Dover, The
| various |
| It's Been a Long, Long Time | Words and Music
| various |
| It's Been a Long, Long Time | I'll Get By
| various |
| It's Been a While | Best Little Whorehouse Goes Public, The
| Hall |
| It's Been A While | Anna Karenina
| Chicorel |
| It's Been a Whole Year | Thrill of a Lifetime
| Hollander |
| It's Been Nice | Jack and the Beanstalk
| Heusen |
| It's Better This Way | Ace
| Oberacker |
| It's Better to Be in Simple Harmony | Andy Capp
| Price |
| It's Better to Give | Nuncrackers
| Goggin |
| It's Better with a Union Man | Pins and Needles
| Rome |
| It's Bigger Than You And Me | My Sister Eileen
| Styne |
| It's Bound To Be Right On The Night | Gay's the Word
| Novello |
| It's Burlesque | Night They Raided Minsky's, The
| Strouse |
| It's Cheesy |
| |
| It's Christmas | Annie
| Strouse |
| It's Commercial | Buccaneer, The
| Wilson |
| It's Dark | Dracula: a Rock Opera
| Briggs, West |
| It's De-lovely | Red, Hot and Blue!
| Porter |
| It's De-Merman |
| |
| It's Deductible | My Blue Heaven
| Arlen |
| It's Delightful Down in Chile | Gentlemen Prefer Blondes
| Styne |
| It's Delightful to Be Married | Great Ziegfeld, The
| various |
| It's Delightful to Be Married! | Tintypes
| various |
| It's Doom | Say, Darling
| Styne |
| It's Easy to Be Lonely | Earl of Ruston
| Link |
| It's Easy to Sing | Salad Days
| Slade |
| It's Easy To Sing (Reprise) | Salad Days
| Slade |
| It's Easy When You Know How | Foxy
| Dolan |
| It's Easy When You Know How | Free as Air
| Slade |
| It's Enough to Make a Lady Fall in Love | Darling of the Day
| Styne |
| It's Every Girl's Ambition | Through the Years
| Youmans |
| It's Everywhere | That Time of the Year
| Oliver, Levin, Cohen, Rosen, Ross, Wherry, Wilf |
| It's Exciting to Be Alive | Ride! Ride!
| Thwaites |
| It's Fate, Baby, It's Fate | Take Me Out to the Ball Game
| Edens |
| It's Foolish But It's Fun | Spring Parade
| various |
| It's For Me | Breathe
| Martin |
| It's Fun to Think | All American
| Strouse |