Zaid or Zayd (/zaɪd/; Arabic: زيد) is an Arabic given name and surname.

• Zaid Abbas (born 1983), Jordanian basketball player
• Zaid Abdul-Aziz (born 1946), American basketball player
• Zaid Al-Harb (1887–1972), Kuwaiti poet
• Zaid al-Rifai (1936-2024), Jordanian politician and prime minister
• Zaid Ashkanani (born 1994), Kuwaiti racing driver
• Zaid Hamid (born 1964), Pakistani political commentator
• Zaid Ibrahim (born 1951), Malaysian politician
• Zaid Orudzhev (born 1932), Russian philosopher
• Zaid Shakir (born 1956), American scholar
• Zaid ibn Shaker (1934–2002), Jordanian general, politician and prime minister

• Zayd Abu Zayd (1195–1270), Almohad political leader
• Zayd al-Khayr (died 631), companion of Muhammad
• Zayd ibn al-Dathinnah, companion of Muhammad
• Zayd ibn Ali (695–740), great-grandson of Ali and fifth Imam according to Zaidi Shi'ism
• Zayd ibn al-Khattab (584-632), companion of Muhammad
• Zayd ibn Arqam (died 686), companion of Muhammad
• Zayd ibn Harithah (581–629), companion of Muhammad
• Zayd ibn Suhan (died 656), companion of Muhammad
• Zayd ibn Thabit (610–660), Arab scribe and theologian
• Zayd Mutee' Dammaj (1943–2000), Yemeni author and politician
• Zayd Saidov (born 1958), Tajik politician
• Zayd Salih al-Faqih (born 1964), Yemeni writer

• Arabic name
• Zaidi (disambiguation)
• Ziad, an Arabic given name and surname
• Zayed (disambiguation)