Laiwu () was a prefecture-level city in central Shandong Province, China. Bordered the provincial capital of Jinan to the north, Zibo to the east and Tai'an to the southwest, it was the smallest prefecture-level city in the province. It had a population of 1,298,529 as of the 2010 census, all living in the built-up (or metro) area made of 2 urban Districts and became part of Jinan in 2019 and 907,839 living in urban area.
The prefecture-level city of Laiwu administered two county-level divisions, both of which were districts.
They were further divided into 19 township-level divisions, including 14 towns, one townships and four subdistricts.
Since 1 January 2019, Laiwu was merged into Jinan which is the capital city of Shandong province and is no longer a prefecture-level city.