These are the songs by Ween that have been used in setlists.

Skycruiser

Performed by Ween1

Slow Down Boy

Performed by Ween22

Someday

Performed by Ween115
Performed as a song (by any artist)116

Sorry Charlie

Performed by Ween92

Spirit Walker

Performed by Ween15

Springtheme

Performed by Ween75

Squelch the Weasel

Performed by Ween74

Stacey

Performed by Ween3

Stay Forever

Performed by Ween62

Strap on That Jammy Pac

Performed by Ween37

Stroker Ace

Performed by Ween252

Sweet Texas Fire

Performed by Ween37

Take Me Away

Performed by Ween608

Tender Situation

Performed by Ween99

The Argus

Performed by Ween86

The Blarney Stone

Performed by Ween240

The Concert Is Over

Performed by Ween21

The Fruit Man

Performed by Ween1

The Golden Eel

Performed by Ween301

The Grobe

Performed by Ween200
Performed as a song (by any artist)201

The HIV Song

Performed by Ween415

The Mollusk

Performed by Ween552