Those Sayyids who are Shia often include the following titles in their names to indicate the figure from whom they trace their descent:

Note: (For non-Arabic speakers) When transliterating Arabic words into English there are two approaches. 1. The user may transliterate the word letter for letter (e.g., "الزيدي" becomes "a-l-z-ai-d-i"). 2. The user may transcribe the pronunciation of the word (e.g., "الزيدي" becomes "a-zz-ai-d-i"); in Arabic grammar, some consonants (n, r, s, sh, t and z) cancel the l (ل) from the word "the" al (ال) (see sun and moon letters). When the user sees the prefixes an, ar, as, ash, at, az, etc... this means the word is the transcription of the pronunciation. An i, wi (Arabic), or i, vi (Persian) ending could perhaps be translated by the English suffixes -ite or -ian. The suffix transforms a personal name or place name into the name of a group of people connected by lineage or place of birth. Hence Ahmad al-Hassani could be translated as Ahmad, the descendant of Hassan, and Ahmad al-Manami as Ahmad from the city of Manama. For further explanation, see Arabic names.1Also, El-Husseini, Al-Husseini, Husseini, and Hussaini. 2Those who use the term Sayyid for all descendants of Ali ibn Abi Talib regard Allawis or Alavis as Sayyids. However, Allawis are not descendants of Muhammad, as they are descended from the children of Ali and the women he married after the death of Fatima, such as Umm ul-Banin (Fatima bint Hizam).
He migrated to Harar first, then settled in the southern part of Omnan which is now a part of Silte. Middle East
Men belonging to the Sayyid families or tribes in the Arab world used to wear white or ivory coloured daggers like jambiyas, khanjars or shibriyas to demarcate their nobility amongst other Arab men, although this custom has been restricted due to the local laws of the variously divided Arab countries. Iraq
The Sayyid families in Iraq are so numerous that there are books written especially to list the families and connect their trees. Some of these families are: the Alyassiri, Al Aqeeqi, Al-Nasrullah, Al-Wahab, Al-Hashimi,Al-Barznji, Al-Quraishi, Al-Marashi, Al-Witry, Al-Obaidi, Al-Samarai, Al-Zaidi, Al-Aaraji, Al-Baka, Al-Hasani, Al-Hussaini, Al-Shahristani, Al-Qazwini Al-Qadri, Tabatabaei, Al- Alawi, Al-Ghawalib (Al-Ghalibi), Al-Musawi, Al-Awadi (not to be confused with the Al-Awadhi Huwala family), Al-Gharawi, Al-Sabzewari, Al-Shubber, Al-Hayali, Al-Kamaludeen and many others. Iran
Sayyids (in Persian: سید Seyyed) are found in vast numbers in Iran. The Chief of "National Organization for Civil Registration" of Iran declared that more than 6 million of Iranians are Sayyid. The majority of Sayyids migrated to Iran from Arab lands predominantly in the 15th to 17th centuries during the Safavid era. The Safavids transformed the religious landscape of Iran by imposing Twelver Shiism on the populace.