- Salmond, Alex
- Sambrook, Gary
- Sandbach, Antoinette
- Saville-Roberts, Liz
- Saxby, Selaine
- Scully, Paul
- Seely, Bob
- Selous, Andrew
- Shah, Naz
- Shannon, Jim
- Shapps, Grant
- Sharma, Alok
- Sharma, Virendra
- Sheerman, Barry
- Shelbrooke, Alec
- Sheppard, Tommy
- Sherriff, Paula
- Shuker, Gavin
- Siddiq, Tulip
- Simmonds, David
- Simpson, David
- Simpson, Keith
- Skidmore, Chris
- Skinner, Dennis
- Slaughter, Andy
- Smeeth, Ruth
- Smith, Alyn
- Smith, Andrew
- Smith, Angela
- Smith, Catherine
- Smith, Chloe
- Smith, Eleanor
- Smith, Greg
- Smith, Henry
- Smith, Jeff
- Smith, Julian
- Smith, Laura
- Smith, Nick
- Smith, Owen
- Smith, Royston
- Smyth, Karin
- Snell, Gareth
- Soames, Nicholas
- Sobel, Alex
- Solloway, Amanda
- Soubry, Anna
- Spellar, John
- Spelman, Caroline
- Spencer, Ben
- Spencer, Mark
- Stafford, Alexander
- Starmer, Keir
- Stephens, Christopher
- Stephenson, Andrew
- Stevens, Jo
- Stevenson, Jane
- Stevenson, John
- Stewart, Bob
- Stewart, Iain
- Stewart, Rory
- Stone, Jamie
- Streeter, Gary
- Streeting, Wes
- Stride, Mel
- Stringer, Graham
- Stuart, Gisela
- Stuart, Graham
- Sturdy, Julian
- Sultana, Zarah
- Sunak, Rishi
- Sunderland, James
- Swayne, Desmond
- Sweeney, Paul
- Swinson, Jo
- Swire, Hugo
- Syms, Robert