Hans Vilhelm Ahlmann (14 February 1852 – 12 May 1928) was a Swedish and Danish architect.

[1] He is credited with designing and restoring a variety of churches in Denmark.

He graduated from the KTH Royal Institute of Technology in 1869, and then studied at the Royal Swedish Academy of Fine Arts from 1870 until 1876.

He contributed his architectural expertise to books such as Danske Tufstens-Kirker (1894), Grenaa Egnens Kridtstenskirker (1896), Jydske Granitkirker (1903) and Ældre nordisk Architektur.

Ahlmann died in Hillerød and was buried at Frederiksberg Ældre Kirkegård.