Ghior (Bengali: ঘিওর) is an upazila (sub-district) of Manikganj District of central Bangladesh, located in the Dhaka Division.

The history of Ghior dates back centuries, and an ancient Buddhist vihara was discovered in Sreebari Borotiya.

After Ghior came under British colonial rule, seven Indigo dye factory (Neelkuthi) were built here; namely in Mirzapur, Nathpur, Paikara, Goalkhali, Mawacel, Bogla/Khetapara and Panchdubi.

Ghior was established as a thana in 1919, and Babu Praphulla Chandra Sen served as its sub-registrar and was followed by Maulvi Minnat Ali.

Bijoy Govinda Guha was elected to represent Ghior in the Manikganj Local Board.

In November 1983, a diarrhoea outbreak occurred in Ghior with hundreds affected and a number of deaths.

[7] On 13 August 2011, a road accident happened in Joka on the Dhaka-Aricha highway with a microbus colliding head-on with an oncoming passenger bus.

[8] A number of members of the Kagojer Phool film crew, including acclaimed filmwriter Tareque Masud and cinematographer Mishuk Munier, died as a result.

Ghior had a literacy rate (age 7 and over) of 54.49%, compared to the national average of 51.8%, and a sex ratio of 1062 females per 1000 males.

It has an abandoned indigo factory (Nilkuthi) in Sribari Baratiya dating back to the colonial rule and an ancient Buddhist vihara in Pachthubi.

In the village of Terashri, there are memorial monuments dedicated to the victims of the Bangladesh Liberation War as well as the Terashree Zamindar Bari.

[16] These are the shrines of Sufi saint Afaz Uddin Shah Pagla and his student Shariyat Ullah.