Macau Post and Telecommunications, most commonly known as CTT, is an entity under the Government of Macao responsible for postal services and telecommunications regulation.

The acronym CTT comes from the former name of the Portuguese postal administration (Portuguese: Correios, Telégrafos e Telefones, lit. 'Post, Telegraph and Telephone') during the colonial period of Macao.

The Macao Post was founded on 1, March 1884 (separate from Correio Público—Public Post Office of Portugal), as a separate entity from China Post and a sub-member of the Universal Postal Union. Prior to the handover of Macau from Portugal to China in 1999, Macau postage stamps bore the Portuguese words REPÚBLICA PORTUGUESA (i.e., the 'Portuguese Republic'), but now bear the Portuguese words MACAU, CHINA.

The Postal service is headed by a Director with two sub-directors.

• Postal Services (1884-now)
• Postal Savings (1917-now)
• Operator of Telecommunication Services (1927–1981)
• Regulator of Telecommunication Services and Radio Spectrum Management (1982–2000)
• Radio Broadcasting Services (1933–1973)
• Supervision of the Electric Industries Services (1928–1985)
• eSignTrust - Digital Certificate Services (2006-now)
• Communications Museum (2006-now)
• Secure Electronic Postal Services (SEPS) (2008-now)
• Telecommunications Regulator (2017-now)

Postal Stations are referred to as Branches with fifteen spread across Macao:

• Central
• Rua do Campo
• Red Market (Almirante Lacerda)
• Mong Ha
• Hac Sa Wan (Areia Preta)
• Cultural Centre
• Terminal Tradic
• Loja do Museu
• Airport
• Nova Taipa
• Ocean Garden
• Carmo (The former Taipa Post Office)
• Coloane
• Seac Pai Van
• Fai Chi Kei

• 
  Headquarters of Macao Post
• 
  Building by night
• 
  Nova Taipa Post Office

CTT post boxes are red in colour as was the case in Hong Kong before 1997. The boxes bear CTT's name in Portuguese and Chinese.

• 
  Postbox (old Style)
• 
  Auto Postbox
• 
  Postbox
• 
  Post House

• List of companies of Macau

• History of Macau Post
• About Macau Post
• eSignTrust
• Communications Museum of Macau
• Macau Postal Savings
• Old CTT website