| William Street | |
| Namesake: | William Pery, 1st Baron Glentworth |
| Length M: | 500 |
| Location: | Limerick, Ireland |
| Coordinates: | 52.6626°N -8.6236°W |
| Direction A: | northwest |
| Direction B: | southeast |
| Terminus B: | Mulgrave Street, Old Windmill Road, Roxboro Road |
| Known For: | shops, pubs, restaurants, financial institutions |
William Street (Irish: Sráid Liam) is one of the main thoroughfares of central Limerick City, Ireland. The street starts at a junction with O'Connell Street (Limerick's main thoroughfare) and continues in a south-east direction, where it is called Upper William Street. The street is named after William Pery, 1st Baron Glentworth a relation of Edmund Sexton Pery who is credited with the development of the present day Limerick City Centre area known as Newtown Pery.[1]
The street is architecturally Georgian in style like much of the Limerick City Centre area. There was a major fire on William Street in May 1860.[2] Prior to the construction of the Limerick Southern Ring Road the street formed part of the N24 route between Limerick & Waterford. It is now part of the R527 road.