The lotus was chosen as the floral emblem of Macau. The Governor Nobre de Carvalho Bridge is a bridge linking the Macau Peninsula and the island of Taipa. The bridge is one of the most recognisable landmarks for the territory. The water beneath the lotus and the bridge symbolise Macau's position as a port and its role played in the territory. The five five-pointed stars echo the design of the flag of the People's Republic of China, symbolising the relationship Macau has with its sovereign state.
According to the Basic Law of Macau, the Macau Regional Flag is a green flag with five stars, lotus flower, bridge and sea water. This law also adopted "Apart from displaying the Flag of the People's Republic of China, the Macao Special Administrative Region may also use a regional flag".
A red and blue stylised "M" with a large five-pointed star, with a red lotus blossom within the centre of the star, on the upper fly of a white flag with two blue horizontal bands
Similar to the current flag of Macau, but the flag colour is red, and the emblem excludes the bridge and water underneath the lotus on the current flag
A stylised lotus flower with an arch of yellow stars on a red flag
A stylised lotus flower with an arch of yellow stars above the flower on a red flag
A depiction of the Guia Fortress Lighthouse, the oldest in Asia, under a golden star; a white halo ring forms around the lighthouse, and two light cones divide the upper fly (red in colour) and lower fly (blue in colour)
A light blue field charged with the official coat of arms of the Portuguese colony of Macau. During the Portuguese administration this flag also represented the territory of Macau in the international forums, although it was not the official flag of the Portuguese colony.
Unofficial variant without a mural crown representing the Kingdom of the Algarve castles in the coat of arms. This flag was found at the University of Macau in a photo of International University sports meeting and it was used in the parade. Although this flag was never used officially, some sports media used it instead of the Portuguese Flag to represent the colony.