Khushbagh (also spelled as Khoshbagh; literally "Garden of Happiness") is the garden-cemetery of the Nawabs of Bengal, situated on the west bank of the Hooghly river, about a mile from its east bank, in the Murshidabad-Jiaganj CD block in Lalbag subdivision of Murshidabad district, West Bengal, India.

[1] The garden hosts the graves of Siraj ud-Daulah and Alivardi Khan, inside a square, flat-roofed mausoleum surrounded by an arcade verandah.

[1] After the death of Nawab Siraj ud-Daulah, in the Battle of Plassey in 1757, his wife Lutfunnisa Begum refused to join Mir Jafar's harem and fled to Dacca (present day Dhaka, in Bangladesh).

She later returned to Murshidabad, and it is said that she lived in Khushbagh tending to his grave and the 108 varieties of roses which once bloomed in the gardens, for several years.

She also allegedly spent ₹1,000 for the maintenance of Khushbagh and after her death, in 1790, she was buried near the grave of her husband Nawab Siraj ud-Daulah.