The family of Al-Saggoff (Arabic: السقاف ; transliterated elsewhere al-Saqqaf or al-Saqqāf) were Arab Singaporean spice traders of Hadhrami origin, who became influential by marrying into a royal family from the Celebes (now Sulawesi, Indonesia). They acquired many properties, like the other Arab families, including the "Perseverance Estate" where they grew lemon grass. The estate is now considered to be the heart of the Muslim community in Singapore, with the Alsagoff family still retaining its prominence there.
As well as being successful merchants and land owners, the family became involved in civic affairs. The family members, at times, held civic office from the 1870s, until Singaporean independence in 1965.
Syed ‘Abdur-Rahman (Arabic: سيد عبد الرحمن السقاف Saiyid ʿAbd ar-Raḥman al-saqqāf) was came to Singapore with his son Ahmad. Their family would later start the Arabic School in Jalan Sultan, in 1912. As a Sayyid, ‘Abdur-Rahman was a descendant of the Islamic Nabi (Arabic: نَـبِي, Prophet) Muhammad.
A large section of Geylang, formally "Geylang Serai," formed part of the 'Perseverance Estate' which belonged to Syed Ahmad. The Alsagoffs had also served as Municipal commissioners of Singapore, from 1872 to 1898, and 1928 to 1933.
Sayyid Ahmad ibn ‘Abdur-Rahman as-Saqqaf (Arabic: الـسَّـيّـد أَحـمـد ابـن عَـبـد الـرَّحـمٰـن الـسَّـقّـاف), like his father, was a merchant. In 1848, he established the Alsagoff Company.