United Overseas Bank Plaza is a complex with twin tower late-modernist skyscrapers in the city of Singapore. UOB Plaza One is one of the three tallest in the city, sharing the title with the OUB Centre and Republic Plaza. UOB Plaza Two is the shorter and older building with construction completed in 1973 and later renovated in 1995 with a similar facade as UOB Plaza One.
Both buildings are connected by a 45 m (148 ft) podium supported by four columns. The podium houses the banking hall of the United Overseas Bank's main branch. The building was opened by then Senior Minister Lee Kuan Yew in 1995 which is 60 years after United Overseas Bank's founding. UOB Plaza One is a 280 m (920 ft) building with 67 floors, and was completed in 1992. It is the headquarters of the United Overseas Bank and major financial corporations such as UBS. On the 60th floor, there is a restaurant, Si Chuan Dou Hua. Its architecture is inspired by the U.S. Bank Tower in Los Angeles.
The basement of the building houses a mosque known as Masjid Moulana Mohd Ali, which is run by Majlis Ugama Islam Singapura (MUIS). This mosque is the first in the Raffles Place district and is unique due to the mosque being located underground. This peculiarity has stirred controversy because to some Muslims, it is not good because it is located "in the bowels" of the earth. UOB Plaza Two is a 162 m (531 ft) building with 38 floors and was completed in 1973 with the building reconstructed again in 1995. The building was formerly the Bonham Building which housed the United Chinese Bank (now the United Overseas Bank) which changed its name to its current name in 1965 and the three storey building was demolished to construct the 30-story building.