Tse (Ц ц; italics: Ц ц) is a letter of the Cyrillic script.

It commonly represents the voiceless alveolar affricate /ts/, like the pronunciation of ⟨ts⟩ in "cats".

In English, Tse is commonly romanized as ⟨ts⟩. However, in proper names (personal names, toponyms, etc.) and titles it may also be rendered as ⟨c⟩ (which signifies the sound in Serbian, Czech, Hungarian etc.), ⟨z⟩ (which signifies the sound in Italian and German), ⟨cz⟩ or ⟨tz⟩.

Tse is thought to have come from the Hebrew letter Tsadi ⟨צ⟩, via the Glagolitic letter Tsi ⟨Ⱌ⟩.

The name of Tse in the Early Cyrillic alphabet is ци (tsi). New Church Slavonic and Russian spelling of the name is цы.

In the Cyrillic numeral system, Tse has a value of 900.

Tse is the 23rd letter of the Russian alphabet. It is used both in native Slavic words (where in mostly corresponds to Proto-Indo-European *k in certain positions) and in borrowed words:

Russian words starting with ⟨ц⟩, such as царь (tsar), are rare, and very few of them are of Slavic origin (the example is usually explained as derived from Latin caesar).

Tse or TSE may refer to:

In Computing:

In Education:

In Finance:

In Medicine:

Other:

The Cyrillic script ( /sɨˈrɪlɪk/) or azbuka is an alphabetic writing system developed in the First Bulgarian Empire during the 10th century AD at the Preslav Literary School. It is the basis of alphabets used in various languages, past and present, in Eastern Europe and Asia, especially those of Slavic origin, and non-Slavic languages influenced by Russian. As of 2011 around 252 million people in Europe and Asia use it as official alphabet for their national languages. About half of them are in Russia.

Cyrillic is derived from the Greek uncial script, augmented by ligatures and consonants from the older Glagolitic alphabet and Old Bulgarian for sounds not found in Ancient Greek. It is named in honor of the two Eastern Roman Empire brothers, Saints Cyril and Methodius, who created the Glagolitic alphabet earlier on. Modern scholars believe that Cyrillic was developed and formalized by early disciples of Cyril and Methodius (such as Clement of Ohrid).

With the accession of Bulgaria to the European Union on 1 January 2007, Cyrillic became the third official script of the European Union, following the Latin and Greek scripts.