Sarati - The predecessor to the Tengwar of Feanor in Middle-earth; alphabet invented by Elvish linguist Rumil of Valinor.

Serq Sohlob - The alphabet used to write my conlang Sohlob.

Shafurow-9 - Shafurow-9 is a distillation of the 26 Roman majuscules and 10 Arabic numerals into a 36-character alphabet based on nine symbols each shown in four rotations. The overriding design goal was to find nine runic shapes that could be rotated to suggest the essence of each letter and digit. The name comes from the default orientation of the first nine symbols - S H A F U R O W 9 - and is meant to be evocative of shaft, furrow, row.

Shannetarian - Shannetarian is a simple, underdetermined cased alphabet. The missing sounds are shown with diacritics.

Shan-Thai - This is an Indic-style script, and as such, it is related to Devanagari, Punjabi, Burmese and so on. Each base consonant has an inherent [a]. If a consonant cluster is desired, a composite character is used (some are shown on the chart).

Shaquean Horizontal Syllabary - This is an almost phonetic syllabary with also stand-alone vowels and consonant diacritic marks. I started with the idea of a syllabary like Katakana in my mind but I wanted something more regular and easier to read so it became just like Ethiopic --but not by the shapes of the symbols.

Shavian - A neography funded by George Bernard Shaw's estate and thereby named after him.

Shi - A writing system for fairy creatures from medieval folklore. The basic lexicon is geared towards a natural environment that such creatures would have inhabited. The glyphs themselves have an organic form, being composed only of curves and circles. The language is a bit like Egyptian hieroglyphics or Chinese ideograms in that there is a base glyph which provides some semantic content, and smaller radicals which augment or alter the meaning of the base glyph. However there are also aspects of the wampum belts from the tribes of the northeastern US, in that the glyphs act to some degree as mnemonics instead of strictly interpreted words. The "Langmaker" symbol starts with the base glyph "si" combined with the carrier marker, which forms the major glyph of "is" - the Realm (or frame) of Person. When placed inside a circle it takes on the role of a noun, becoming "person". Then, starting with the radical in the highest position, is the glyph "shi" - lending the meaning of "creation". This combination in itself would form the symbol for "creator". Proceeding counter-clockwise leads to the remaining glyph, "tu" - lending the meaning of "sound". "Combining "tu" (sound) with "o-is" (person) would form a symbol meaning person-sound" - speech, language, or even song. However in context with "shi" (creation) forms a symbol with the meaning of "person who creates speech", "speech maker", or even "singer." This is to be contrasted with the complete sentence "o-is o-is tu e-shi" (see link below for image), which could be translated as "someone creating speech".

Shukaraz - Shukaraz is a true alphabet -- one glyph for each consonant and vowel. It has the outward appearance of an abugida in the style of Aramaic or Arabic, however. Another main difference from Arabic or Aramaic is that script direction is left to right, as we write in the Latin script. I have kept it simple, with diacritics only ensuring that certain letters aren't mistaken for others, as well as "additions" to the vowels (/e/, and /o/, which will be useful for a conlang if I use this script for one, to give it "flavor"). I feel it's also a little bit simpler to write and remember the individual letter forms because they do not radically change form medially as certain letters can in Arabic, for instance.

Sindinian

Solresol - A musical alphabet for the musical language Solresol.

South Ariwentan

Sultet - This was created by some random scribbling I did on my hand, and I may or may not apply this to a conlang.