Vjekoslav "Alojz" Bastl (13 August 1872 – 3 September 1947) was a Croatian architect known for his diverse secessionist architectural style.
Today, he is regarded as one of the highlights of early modern architecture in Croatia.
Bastl was born on 13 August 1872 to an ethnic Czech family originating from a Bohemian town Příbram.
He eventually moved to Zagreb where he established a status as an architect working for the Hönigsberg & Deutsch atelier.
Upon arrival, he enrolled in the Royal crafts school, graduating in 1896.