Sababa (excessive love)
Sabatini
Sabian
Sabientje
Sabiha (morning)
Sable
Sabor
Sabrina
Sacura
Sadeek (true friend)
Safari
Safari's Tango
Safety
Saffier
Safira
Sage
Sage Honey
Sagita
Sahib
Sahida
Sailing Home
Saint Paulia
Saladin
Salaika
Salapia
Salaris
Salem
Salerna
Sally
Sally
Sally
Salmiak
Salome
Salon
Salsa
Saltador (jumper)
Saltar (jump)
Salutier
Saluut (Dutch, means: salute)
Salvador
Salvation
Salverino
Sam
Samantha
Samara
Samber
Sambo
Sambooka
Samier
Sammie
Sammy
Sammy Jo
Samoerai
Sampson
Samsara
Samson
San Pietro
San Salvator
Sancho
Sand Dancer
Sander
Sandia (watermelon)
Sanditton
Sandokan
Sandokhan
Sandor
Sandor
Sandy
Sanglamore
Sankara
Sanky
Sanne
Sanora
Sans Cesse
Sans Soucis (Zonder Zorgen)
Sans Toi
Santa Luigi
Santa Monica
Santana
Santander
Santex
Santiam
Santos
Saphir
Saphir
Sapphire
Sarabanda
Sarabi
Saracen
Sarah
Sarajevo
Saraz
Sareli
Sarita
Sarona
Saros
Saroy
Sascha
Sasja
Saskia
Sassifras
Sassy
Satagoras
Satan
Satin
Satinessa
Saturn
Saturnus
Saturny
Saudades
Savana
Savannah
Savas
Savenbi
Saxon
Say Goodnight Gracie
Sayaf El Arab
Saycobb
Saydan
Sayonara
Sazona
Sazzie
Scamp
Scarlet Party
Scarrif
Scemente
Scenario
Sceptre
Sceptrelli
Schanulleke
Scharmeur
Schilling
Schoffie
Schruffy
Sciara
Scimitar
Scion
Scooby
Scorpion
Scot
Scott
Scout
Scruffy
Scully
Scurry
Sea Memory
Seabird
Seawolf
Sebastiaan
Secret
Secret Angel
Secur
Seddam
Seducer
Seeing is Believing
Seelilie (German, means: water-lily)
Segura
Seira
Selena
Selkie
Selyne
Sem
Senalda (symbol)
Senetto
Señorita
Sensation
Sepitone
Seppl
Sequin
Sequito (popular)
Serabia
Sereja
Serena
Serenade
Serendipity
Serga
Serlanda
Servola
Sesam
Sessana
Sessie
Seventy
Sexi Girl
Shaazkaraf
Shabanou
Shabeen
Shack
Shadow
Shadow Hunter
ShadowMaker
Shadows in the Night
Shaene
Shagya
Shaka
Shaka Zulu
Shakespear
Shakey
Shalimar
Shallow
Shalom
Shamal
Shamanta
Shamaraan
Shamrock
Shamrock Pride
Shamrock Princess
Shana
Shananigan
Shandor
Shanghai
Shania's Pride
Shanna
Shannara
Shannon
Shannon
Shaolin
Shareef
Shareek (partner)
Sharena
Sharga
Sharifa (honest)
Shark
Sharona
Sharpo
Sharpset
Sharronit
Shayenne
Shaylan
Sheba
Sheba
Shedo
Sheer Magic
Sheera
Sheik
Sheikh
Sheila
Shelta (Irish language)
Shenaniganz
Shennigans
Shera
Sheri
Sheriff
Shetan
Shi Roan Rose
Shianne
Shib
Shilah
Shilayla
Shiloh
Shima
Shimala
Shimmaree
Shinda
Shiner
Shining
Shining Hill
Shining Star
Shiraz
Shirley
Shirocco
Shiseido
Shogun
Sholeena
Shot
Shotgun
Shoukran (thanks)
Showdancer
Showdown
Showgirl
Showmaster
Showoff
Shy Boy
Siam
Sibbe
Sibora
Sicky
Sidney
Siege
Sieglinde
Sierra Leone
Siesta
Siesti
Sieta
Siglavie roma
Siglavy
Siglavy
Signal
Signeur
Signora
Signorita
Siko Le Grand
Silas
Silas
Silberio
Silbersee (german, means: silver see)
Silde
Silent
Silent Partner
Silhouette
Silius
Silke
Silky
Silky Lady
Silly Girl
Silouet
silvana
Silveline
Silver
Silver Lightning
Silver Lining
Silver Moon
Silverado
Silverday
Silverlea
SilverLee
Silverreef
Silverstone
Silvester
Silvia
Silvy
Simonnetta
Simphony
Simple Perfection
Simplex
Simsy
Sinai
Sinaya
Sinbad
Sindri
Sineada
Sinfonie
Singleshot
Sinja
Sion
Sipora
Sir Courtly
Sir Jumpsalot
Sire
Sirena (beauty)
Siri
Sirikit
Siro
Sirocco
Sisi
Sissi
Sit This One Out
Sita
Sivoon
Sixstring
Sjaakie
Sjah
Sjanneke
Sjeng
Sjimme
Sjirk
Sjirley
Sjonnie
Skamir
Skeifa
Skinny
Skipper
Skippy
Skjoni (bont )
Skjonie
Skoll
Sky Girl
Skydancer
Skyla
Skyracer
Skywalker
Sleipnir (horse of God)
Slobber
Sloeber
Slumberland
Smartie
Smokey
Smokey Midnight
Smooky
Smooky Mountain
Smooth Doc Bar
Snap Cracker Champagne
Snap Decision
Snapshot
Snautje
Sneeuwwitje
Snickers
Snoopy
Snoopy
Snowdancer
Snow-dancer
Snowflake
Snowflake
Snowflakes
Snowfoot
Snowshoe
Snowy
Snuffel (Dutch, means: sniffy)
Snuffie
So Long
Sobella
Socrates
Soda
Soedan
Soekie
Soeraya
Sofia
Sok
Sokka (horse with white legs)
Soko
Sola
Solamente (only)
Solange
Soldier
Soleado
Solera
Solero
Solfer
Solid Brick
Solimar
Solist
Solo
Solo Victory
Soltoa
Something your not
Somolli
Somolli Star
Sona
Sonate
Songcan
Songflori
Sonic
Sonja
Sonjita
Sonke
Sonnengold
Sonny
Sophisticate
Soraya
Sorayi
Sorbet
Sorella
Sörli (for brown horse with black manes)
Sorry
Sottie
Soul Aim
Sounds Familiar
Southern Treasure
Souvenier
Souvenir
Soying
Space Ace
Spain
Spanish Boy
Sparino
Spark
Spark of Magic
Sparkler
Sparkles
Sparkling Sundance
Sparky
Spartplug
Spaz
Spearmint
Special
Special Agent
Special Bet
Special Dark
Special Queen
Speciality
Speed
Speedrise
Speedway
Speedy
Speedy Crown
Speedy Gonzales
Speedy Gonzalez
Speedy Lover
Spencer
Spetter
Spike
Spikey
Spiridon
Spirit
Spitfire
Spitfire
Splash
Splendid
Spoetnick
Sponty
Spook
Spooky
Sporadicus
Spot
Spotty
Spring
Springbourne
Sproet
Spymaster
Squanto Navajo
Squeky Clean
Stability
Stacey
Stacy
Stafanus
Stallion
Standing Ovation
Stanford
Stanhope
Stanmiro
Stanny
Star
Star Cruiser
Star Dancer
Star Dust
Star Heroin
Starbar
Starbuck
Starbust
Stardancer
Stardancer
Stardust
Stardust Boy
Starfire
Starky
Starlet
Starlight
Starmodel
Staro
Starshine
Starvi
Stator
Statuar
Steal My Thunder
Steamroller
Stefan
Steffie
Steinkrone
Stella
Stendor
Stentor
Stephanie
Steppy
Ster (Dutch, means: star)
Sterling Silver
Sterling Silver Reign
Sterna
Stippel
Stjarna (star)
Stockwood
Stoltur (proud)
Storm
Storm Cloud
Stormy
Stornella
Story
Stradella
Stranger
Strawberry
Strawberry
Strawberry Wine
Strawinsky
Strike Oil
Stripteaser
Stulka (girl)
Stumpy
Stygian (Latin-hellish)
Suberta
Submerge
Suddenly
Sugar Bowl
Sugarcane
Sugarfoot
Sugarlips
Sulka
Sully
Sultan
Summary
Summer
Summer Pearl
Summerfill
Summerflash
Summergirl/boy
Sun
Sun Beam
Sun Spot
Suna (Beautiful One In Arabic)
Sunbeam Ballerina
Sunbeam.
Sunbeath
Suncrown
Sundance
Sundance Kid
Sundancer
Sundown
Sunflower
Sunlight
Sunny
Sunny Boy
Sunny Girl
Sunny Pride
Sunny Yankee
Sunray
Sunrise
Sunset Colors
Sunshine
Sunup
Super Explosive
Super Model
Super Star
Super Way
Superba
Supporter
Supreme
Suraya
Sure Thing
Surgue
Surprise
Surrepom
Surrogate
Survival
Suze
Svadelfari (mystic horse/toverpaard)
Svatur (black)
Svedka
Swahili
Swan
Swap
Sweepstakes
Sweet sensation
Sweet Strawberry Shortcake
Sweet Strawberry Shortcake
Sweet Taboo
Sweetex
Sweety
Swieber
Swift
Swift
Swigga
Swinging Sword
Swining Iowa
Swizzlestick
Sybine
Sybra
Sydney
Sylixia
Sylmar
Sylvana
Sylvester
Sylvia
Symbol
Symphatico
Symphony
Synonym