Qamar uz Zaman (Arabic: قمر الزمان) is an Arabic phrase meaning "Moon of the era". it may refer to:

People

• Kamarulzaman Teh (1920–2002), Malaysian socialist
• Kamaruzaman Sjam (1924–1986), Indonesian communist
• Abul Hasnat Muhammad Qamaruzzaman (1926–1975), Bangladeshi government minister
• Qamar-uz-Zaman Shah (1933–2016), Pakistani agriculturalist and politician
• Qamar-ul-Zaman Faridi Chishti (1940–2011), Pakistani Sufi saint
• Kamaruzzaman Shariff (born 1941), fifth Mayor of Kuala Lumpur
• Qamaruzzaman Azmi (born 1946), Indian Islamic scholar
• Muhammad Kamaruzzaman (1952–2015), Bangladeshi journalist and politician
• Qamar Zaman (born 1952), Pakistani squash player
• Qamar Zaman Khan (born 1952), Pakistani minister
• Qamar Zaman Kaira (born 1960), Pakistani government minister
• Qamar Zaman Chaudhry (born 1960), Pakistani bureaucrat
• Kamaruzaman Mohamad (born 1961), Malaysian journalist and editor
• Kamarulzaman Mat Salleh (born 1964), fourteenth Mayor of Kuala Lumpur
• Kamarulzaman Hassan (born 1979), Malaysian footballer
• Md. Kamruzzaman (fl. 1986–1988), Bangladeshi politician
• AKM Kamruzzaman (fl. 1991–1996), Bangladeshi politician
• Qamar-uz-Zaman Chaudhry, Pakistani climate scientist
• Kazi Kamruzzaman, Bangladeshi paediatric surgeon and social worker

Other

• CGS Kamaruzzaman, a leader-class offshore patrol vessel of the Bangladesh Coast Guard
• Shaheed Qamaruzzaman Stadium, a multi-use stadium in Rajshahi, Bangladesh
• Kamaralzaman or Camaralzaman, a fictional character in the book One Thousand and One Nights