The Union Arcade is an apartment building located in downtown Davenport, Iowa, United States. The building was individually listed on the National Register of Historic Places in 1983 by its original name Union Savings Bank and Trust. Originally, the building was built to house a bank and other professional offices. Although it was not the city's largest bank, and it was not in existence all that long, the building is still associated with Davenport's financial prosperity between 1900 and 1930. From 2014 to 2015 the building was renovated into apartments and it is now known as Union Arcade Apartments. In 2020 it was included as a contributing property in the Davenport Downtown Commercial Historic District.

Davenport Bank and Trust Company was the leading bank of the Quad Cities metropolitan area for much of the 20th century and for the surrounding region of eastern Iowa and western Illinois. It was once Iowa's largest commercial bank, and the headquarters building has dominated the city's skyline since it was constructed in 1927 at the corner of Third and Main Streets in downtown Davenport, Iowa. It was acquired by Norwest Bank of Minneapolis in 1993 and now operates as part of Wells Fargo following a 1998 merger of the two financial institutions. The historic building was listed on the National Register of Historic Places in 1983 under the name of its predecessor financial institution American Commercial and Savings Bank. In 2016 the National Register approved a boundary increase with the Davenport Bank and Trust name. It was included as a contributing property in the Davenport Downtown Commercial Historic District in 2020. It remains the tallest building in the Quad Cities, and is today known as Davenport Bank Apartments as it has been redeveloped into a mixed-use facility housing commercial, office, and residential space.