League

• USA
• Men's Derby
• Disbanded
• Sioux City Kornstalkers

The Sioux City Kornstalkers appear to have disbanded, or at least have entered an inactive state.  MRDA still lists them as a member league, but their Facebook page has not been updated in more than a year.

• Germany
• Disbanded
• Sisters of Mayhem Roller Derby

The Sisters of Mayhem appears to be disbanded.  Their Facebook page has not been updated since March of 2017, and appear not to have played a game for even longer than that.

• USA
• Disbanded
• Slaughter County Roller Vixens

• USA
• Need better picture
• Smoky Mountain Rollergirls

• USA
• SO Derby

SO is short for Southern Oregon.

• USA
• Sonoma County Roller Derby

• USA
• South Central Roller Girls
• Oklahoma

• Need better picture
• Germany
• South German Men's Roller Derby

• Need better picture
• Australia
• South Island Sirens Roller Derby League

• USA
• South Shore Roller Girls

• Need better picture
• Australia
• South Side Derby Dolls

• Need better picture
• Australia
• South Side Derby Dolls

• Star Wars
• Australia
• South Side Derby Dolls

South Side Derby Dolls has a bit of a Star Wars theme about them. Besides referring to their league as S2D2, their charter team is known as The Force; their non-charter team is known as The Empire.  The league's officials are collectively referred to as The Droids.  If this patch was specifically given to officials I am not aware of it.

• Star Wars
• Australia
• South Side Derby Dolls

• USA
• Need better picture
• South Side Roller Derby
• Banked Track

South Side Roller Derby is one of the few remaining banked track leagues. This particular patch is given to skaters when they pass their minimum skills tests. 

• Need better picture
• Canada
• South Simcoe Rebel Rollers

• Canada
• South Simcoe Rebel Rollers

• Need better picture
• Canada
• South Simcoe Rebel Rollers

The Boneyard Betties are one of South Simcoe's Rebel Rollers' two home teams.

• Need better picture
• Canada
• South Simcoe Rebel Rollers

The Ghoul Guides are one of South Simcoe's Rebel Rollers' two home teams.

• UK
• SWAT Roller Derby

South West Angels of Terror is currently called SWAT Roller Derby.

• Canada
• South West Sask Roller Derby Association

The Redneck Betties are the travel team of South West Sask Roller Derby Association.

• UK
• Southampton City Rollers

• UK
• Southampton City Rollers

• UK
• Need better picture
• Men's Derby
• Southern Discomfort Roller Derby

• USA
• Southern Illinois Roller Girls

• USA
• Southern Illinois Roller Girls
• Illinois

This patch was sold via a "made to order" merch service.  Such services rarely do one-off orders for embroidered patches due to the extensive up-front work required, although the fact it's stitched onto pre-cut and edged blank patches from China cuts down the production work.  This should be considered to be a "highly generic" patch (albeit one with a league logo), and not one crafted with quality in mind.

• USA
• Southern Maryland Roller Derby

• USA
• Southland Slashers Roller Derby

• USA
• Southshire Roller Derby

• UK
• Soy Division

Soy Division is a UK pick-up / mixer team of vegans and vegetarians.