| Stevens Institute of Technology | Stevie Wonder | Stewart Copeland |
| Steyts | Stezzano | STI |
| STI College - Calamba | Stia | Stibium |
| Sticking plaster | Stictapteryx | Stictocarbo |
| Stienta | Stiff | Stiff (Album ng White Denim) |
| Stigliano | Stigma of the wind | Stignano |
| Stilfs | Still You | Stillness |
| Stilo | Stilosoma extenuatum | Stimigliano |
| Stimulation of nipples | Stimuli | Stimulus |
| Sting | Sting Energy Drink | Sting of scorpion |
| Stinger | Stink grass | Stintino |
| Stio | Stiophoridae | Stirling |
| Stith Thompson | Stix | Stix River |
| Sto. Santiago, Sarrat, Ilocos Norte | Sto. Tomas, Sarrat, Ilocos Norte | Sto. Tomas, Vintar, Ilocos Norte |
| Stoat | Stock market | Stockholm |
| Stockholm county | Stockholm province | Stockholms |
| Stockholms lan | Stockholms län | Stocking |
| Stockings | Stockton, California | Stoic |
| Stoicism | Stoics | Stoiko |
| Stoisismo | Stoke-on-Trent | Stolpe, Parchim |
| Stoma | Stomach | Stomatopod |
| Stomatopoda | Stone Age | Stone apple |
| Stone arrowhead | Stone gem | Stone gems |
| Stone-apple | Stone-gem | Stonewall Inn |
| Stop consonant | STOP error | STOP Error |
| Stop motion | Stop motion animation | Stop, Look & Listen |
| Stop, Look, & Listen | Stop-motion | Stopped menstruating |
| Stora Levene | Storehouse | Storge |
| Stories from the Heart | Stork | Storm god |
| Stornara | Stornarella | Storo |
| Story | Story of Ahiqar | Story of creation |
| Story of My Life | Story of Susanna | Story of the Three Children |
| Story of the Three Holy Children | Story teller | Storyboard |
| Storyline | Storyline (palabas ng dokumentaryo) | Stra |
| Straßburg | Strabismus | Strabo |
| Stradella (PV) | Stradella, Lombardia | Stradella, Lombardy |
| Strafgesetzbuch § 86a | Straight female | Straight from the Shoulder |
| Straight jacket | Straight male | Straight man |
| Straight men | Straight translation | Straight-jacket |
| Straightforward | Straightjacket | Strait jacket |
| Strait of Magellan | Strait of Singapore | Strait-jacket |
| Straitjacket | Straits of Magellan | Straits Settlements |
| Strambinello | Strambino | Strange quark |
| Strange Times | Strangolagalli | Strasbourg |
| Strasburgo | Strassburg | Strata |
| Strategia della tensione | Strategic | Strategic business management |
| Strategic management | Strategy | Stratigrapiya |
| Stratum | Strauss ang Nakababata | Strauss ang Nakakabata |
| Strauss II | Strauss na Nakababata | Strauss na Nakakabata |
| Strauss the Younger | Stravinskii | Stravinskij |
| Straw man | Strawberry | Strawberry Lane |
| Strawberry Prince | Strawberry Shortcakes | Strawberry Shortcakes (manga) |
| Strawinsky | Strawman | Street |
| Street Art | Street dog | Street food |
| Street of Liberty | Street-dog | Streetdog |
| Strembo | Strengthening exercise | Strep throat |
| Strepsirrhini | Streptococcal pharyngitis | Streptococcus |
| Streptomyces | Streptomyces albolongus | Streptomyces alboniger |
| Streptomyces albosporeus labilomyceticus | Streptomyces albosporeus subspecies labilomyceticus | Streptomyces albovinaceus |
| Streptomyces aureocirculatus | Streptomyces baarnensis | Streptomyces bobili |
| Streptomyces clavifer | Streptomyces galtieri | Streptomyces longispororuber |
| Streptomyces longisporus | Streptomyces viridaris | Streptomycetaceae |
| Streptopelia turtur | Stresa | Stress |
| Stress (mekanika) | Stress (pisika) | Stress (sikolohiya) |
| Strevi | Strezhevoy | Striano |
| Striated Swallow | Strigidae | Strigiformes |
| Strigno | Strike | String (agham pangkomputadora) |
| String (agham pangkompyuter) | String (computer science) | String beans |
| String instrument | Stringed instrument | Strings |
| Strip club | Stripper | Striptease |
| Stripteaser | Strix (mitolohiya) | Stroßburi |
| Stroitel | Stroke | Stroke (paglilinaw) |
| Strona | Stroncone | Stroncone, Italy |
| Stroncone, Italya | Strong Bad Sings (and Other Type Hits) | Strong interaction |
| Strong nuclear force | Strongbox | Stronger (What Doesn't Kill You) |
| Strongoli | Strongroom | Strontio |
| Strontiyo | Strontiyum | Strontyo |
| Strontyum | Stroopwafel | Stroppiana |
| Stroppo | Strossburi | Strozza |
| Structural health monitoring | Structural hybrid | Strukli |
| Struklji | Strumpet house | Strunino |
| Struthio | Struthio camelus | Struthiomimus |
| Struthionidae | Struthioniformes | Struthiornithiformes |
| Strzyga | STS | Stuart Fergusson Sutcliffe |
| Stuart Fergusson Victor Sutcliffe | Stuart Sutcliffe | Stuart Victor Sutcliffe |
| Stub (Tsina) | Student | Student Canteen |
| Student Christian Movement of Great Britain | Student Christian Movement of the Philippines | Student's t-distribution |
| Student's t-test | Students | Studies (art) |
| Studio 23 | Studio 7 | Studio Babelsberg |
| Studio City, California | Studio Ghibli | Studio Pierrot |
| Study (art) | Study English | Study of culture |
| Study of gender | Stuffed milkfish | Stunt |
| Stunts | Stupa | Stupa ng Mankiala |
| Stupid | Stupino | Sturmabteilung |
| Sturnidae | Sturno | Sturnus vulgaris |
| Stuttgart | Sty | Stygian |
| Stygiano | Style | Stylish |
| Stylistic | Stylistics | Stylistics (linguistics) |
| Styracosaur | Styracosauro | Styracosaurus |
| Styx | Styx River | Su |
