|Native name||Sráid D'Olier (Irish)|
|Length||160 m (520 ft)|
|Width||22 metres (72 ft)|
|northwest end||O'Connell Bridge|
|southeast end||College Street, Townsend Street|
|Known for||The Irish Times, O'Connell Bridge House|
D'Olier Street (//) is a street in the southern city-centre of Dublin, the capital of Ireland. It and Westmoreland Street are two broad streets whose northern ends meet at the southern end of O'Connell Bridge over the River Liffey. Its southern end meets Fleet Street, Townsend Street, College Street and Pearse Street.
The street is named after Jeremiah D'Olier (1745–1817), a Huguenot goldsmith and a founder of the Bank of Ireland. D'Olier was the Sheriff of Dublin City in 1788 and a member of the Wide Streets Commission. The street was one of the last major interventions in the Dublin city plan to be executed by the Wide Streets Commissioners.
O'Connell Bridge House is located at 2 D'Olier Street. This office development was extended in 1968, by the same developer as O'Connell Bridge House, John Byrne. Alongside D'Olier House these modern office blocks surround the former headquarters of the Dublin Gas Company, a rare surviving art deco building in Dublin, was also designed by Desmond FitzGerald. D'Olier House has been leased by the Department of Social Welfare since shortly after its completion.
In 1830, Samuel Lover was secretary of the Royal Hibernian Academy and lived at number 9 D'Olier Street.
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