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- Saddle Mountain Township, Comanche County
- Sadie Township, Sequoyah County
- Saline Township, Alfalfa County
- Saline Township, Delaware County
- Saline Township, Harper County
- Saline Township, Mayes County
- Sallisaw Township, Sequoyah County
- Salonia Township, Latimer County
- Salt Fork Township, Grant County
- Sandy Hook Township, Cimarron County
- Sans Bois Township, Haskell County
- Santa Fe Township, Noble County
- Sapulpa Township, Creek County
- Savannah Township, Pittsburg County
- Sayre Township, Beckham County
- Schulter Township, Okmulgee County
- Seay Township, Blaine County
- Seger Township, Washita County
- Seiling Township, Dewey County
- Severs Township, Okmulgee County
- Seward Township, Logan County
- Shady Point Township, Le Flore County
- Shaman Township, Wagoner County
- Shannon Township, Creek County
- Shannon Township, Wagoner County
- Sheldon Township, Ellis County
- Sheridan Township, Garfield County
- Sheridan Township, Major County
- Sherman Township, Kingfisher County
- Shirley Township, Grady County
- Sickle Township, Dewey County
- Sickles Township, Caddo County
- Simpson Township, Dewey County
- Simpson Township, McIntosh County
- Skedee Township, Pawnee County
- Skeleton Township, Garfield County
- Skeleton Township, Kingfisher County
- Sledgeville Township, Texas County
- Snow Creek Township, Nowata County
- South Cement Township, Caddo County
- South Choctaw Township, Lincoln County
- South Creek Township, Lincoln County
- South Elk Township, Washita County
- South Fox Township, Lincoln County
- South Keokuk Township, Lincoln County
- South Lathram Township, Caddo County
- South Seminole Township, Lincoln County
- South Wichita Township, Lincoln County
- Speairs Township, Bryan County
- Speermoore Township, Harper County
- Speers Township, Craig County (reorganized and renamed)
- Spiro Township, Le Flore County
- Spring Township, Alfalfa County
- Spring Township, Woods County
- Spring Creek Township, Logan County
- Spring Creek Township, Oklahoma County
- Springer Township, Logan County
- Springer Township, Oklahoma County
- Springvale Township, Logan County
- St. Louis Township, Pottawatomie County
- Starr Township, Grady County
- Stella Township, Alfalfa County
- Stella Township, Cleveland County
- Stephens Township, Tillman County
- Stillwater Township, Payne County
- Stilwell Township, Adair County
- Stone Township, Major County
- Stone Bluff Township, Muskogee County
- Stonewall Township, Pontotoc County
- Stratford Township, Garvin County
- Stratton Township, Texas County
- Strauss Township, Cotton County
- Straight Township, Texas County
- Streeter Township, Roger Mills County
- Strike Axe Township, Osage County
- Stringtown Township, Atoka County
- Stuart Township, Hughes County
- Sulphur Township, McCurtain County
- Summerfield Township, Le Flore County
- Sumner Township, Garfield County
- Sunny Slope Township, Creek County
- Supply Township, Woodward County
- Sutton Township, Muskogee County
- Swan Lake Township, Caddo County
Read more about this topic: List Of Oklahoma Townships