There are a few, but it won't hurt to list them.

Battle Theme (FFI)
Temple of Chaos (FFI)
Battle Theme (FFII DoS)
Red Wings (FFIV)
Prologue (Not to be confused with Prelude)(FFIV)
Battle 1 (FFIV)
Battle 2 (FFIV)
The Dreadful Battle (FFIV)
The Final Battle (FFIV)
Ending theme (FFIV)
The Battle (FFV)
Walking the Snow Mountains (FFV)
The Dragon Spreads it's Wings (FFV)
The Fierce Battle (FFV)
Music Machina (FFV)
My Home Sweet Home (FFV (could have sworn I've heard this in FFVII or IX))
ExDeath's Castle (FFV)
Battle with Gilgamesh (FFV)

Ho boy, FFVI might be a long list.
Locke (FFVI)
Battle Theme (FFVI)
Edgar and Sabin (FFVI)
Kefka (FFVI)
Mt. Koltz (FFVI)
Save Them! (FFVI)
The Decisive Battle (FFVI)
Terra (FFVI)
Slam Shuffle (FFVI)
Grand Finale (FFVI)
Setzer (FFVI)
The Empire Gestahl (FFVI)
Devil's Lab (FFVI)
Black Jack (FFVI)
New Continent (FFVI)
The Fierce Battle (FFVI)
The Day After (FFVI)
Searching for Friends (FFVI)
Dancing Mad (FFVI)
Still More Fighting (FFVII)
JENOVA (FFVII)
Judgement Day (FFVII)
One Winged Angel (FFVII)
Force Your Way (FFVIII) (Can't think of any others)

FFIX, another long list!
Feel My Blade (FFIX)
Vamo' Alla Flamenco (FFIX)
Battle 1 (FFIX)
Battle 2 (FFIX)
Run! (FFIX)
Crossing Those Hills (FFIX)
Freya's Theme (FFIX)
Kuja's Theme (FFIX)
Theme of Tantalus (FFIX)
Ambush Attack (FFIX)
Eiko's Theme (FFIX)
Protecting My Devotion (FFIX)
Gurugu Volcano (FFIX)
The Airship, Hildagarde (FFIX)
You're not Alone! (FFIX)
Dark Messanger (FFIX)
Final Battle (FFIX)
Normal Battle (FFX)
Enemy Attack (FFX)
Fight with Seymour (FFX)
The Desicive Battle (FFX)

And that's it.