Joachim Grassi

Joachim Grassi (Italian spelling Gioachino, 1837 – 19 August 1904) was an Italian architect of Austrian/French nationality who worked for the Siamese government in the late nineteenth century. He was among the first European architects employed by King Chulalongkorn (Rama V), and contributed extensively to Siam (now known as Thailand)'s architecture during the time of its modernization.

His works include:

• Concordia Club
• Bang Pa-in Palace
• Wat Niwet Thammaprawat
• Residence of son of the Chaophraya Phanuwong Mahakosathibodi (Thuam Bunnag)
• Residence of Chaophraya Surawong Waiyawat (Wora Bunnag)
• Reception house for the Portuguese Ambassador
• Buraphaphirom Palace
• Prince Saisanitwong Palace
• Prince Svasti Sobhon Palace
• Prince Rajasakdi Samosorn Palace
• Saphan Than Palace
• Courts of Justice
• Tha Phra Palace
• Statue of Queen Sunanda at Suan Saranrom
• Sunandalaya School
• Printing house at Chang Rong Si Bridge
• Residence of Chao Muen Wai Woranat
• Windsor Palace
• Front soldier barracks
• Cavalry barracks
• Conception Church bell tower
• Saint Joseph Church
• Customs House
• Chulachomklao Fort
• Henry Alabaster tomb monument in the Bangkok Protestant Cemetery
• Assumption College old school building
• Victoria and Saovabhak Buildings at Siriraj Hospital
• Hongkong and Shanghai Bank
• Old Bangkok Remand Prison