|— Province —|
|• Total||19,368 km2 (7,478 sq mi)|
|• Density||88/km2 ( 230/sq mi)|
|Time zone||IRST (UTC+03:30)|
|• Summer (DST)||IRST (UTC+04:30)|
Hamedan Province (Persian: استان همدان, Ostān-e Hamadān ) is one of the 31 provinces of Iran. Its center is Hamedan city. The province of Hamedan covers an area of 19,546 km². In the year 1996, Hamedan province had a population of approximately 1.7 million people.
Hamedan enjoys temperate warm summers and relatively cold winters.
Demographics and languages 
Malayer county has a population of around 310,000 people, Nahavand county has a population of 200,000 people, Hamadan County has a population of 700,000 thousand people, Tooserkan and Asadabad each have a population of around 150,000, Kabutare ahang, Razan, and Bahar each have a population of between 120,000 - 140,000 people.
Based on official statistics of 1997, the population of Hamadan county was 563,444 people (with overwhelming majority living in Hamadan city).
- Azeri: Most people living in the north and eastern of province and west of Hamadan city (562 villages of province)
- Luri: Most people living in the southern of province in Malayer, Nahavand and Samen (255 villages of province-Luri and Lak) 
Counties Languages 
In Hamadan city, 80% of the people identified their language as Persian, 12% Azeri and 8% Luri, Kurdish and Laki.
In Hamadan city, 97% of the people identified their language as Persian and 3% other languages. The population of Nahavand was 184160 (in 1997) with approximately 99% speaking Luri and Laki. The population of Malayer in 1997 was 297062 and approximately 45% speak Persian, 45% Luri and Laki and 10% Azeri. The population of Tooserkan county was 118945 in 1997 and the majority of the population is Luri and Laki. Alongside a minority of Azeri of 22%. In Asadabad county, the population was 110077 (in 1997) and 63% were Azeri, 14% Persian, 19% Kurdish and 4% Luri and Laki.. In Kabudarahang, the population in 1997 was 152318 with 90% speaking Azeri, 5% Persian and another 5% Kurdish. In Razan county, the population was 123790 (in 1997) with 99.47% of the residents speaking Azeri and 0.53 speaking Kurdish. In Bahar country was 127600 with 86.3% speaking Azeri, 7.9% speaking Kurdish, 4.5% speaking Persian and 1.3% speaking Luri.
Hamedan province is one of the most ancient parts of Iran and its civilization. Relics of this area confirm this fact. Today's Hamedan is what is left of Ecbatana, The Medes' capital before they formed a union with the Persians. The poet Ferdowsi says that Ecbatana was built by King Jamshid.
According to historical records, there was once a castle in this city by the name of Haft Hessar (Seven Walls) which had a thousand rooms and its grandeur equalled that of the Babylon Tower.
The structures of city are related to Diya Aku, a King of the Medes from 700 BC. According to Greek records, this territory was called 'Ekbatan' and 'Hegmataneh' by this King, thus transformed into a huge capital.
During the Parthian era, Ctesiphon became capital of Persia, and Hamedan became the summer capital and residence of the Parthian rulers. After the Parthians, the Sassanids constructed their summer palaces in Hamedan as well.
In the year 633 when the war of Nahavand took place and Hamedan came into the hands of the invading Arabs, at times it thrived and at times it declined and witnessed hardships. During the Buwayhids, it suffered plenty of damages. In the 11th century, the Seljuks shifted their capital from Baghdad to Hamedan once again.
The city of Hamaden was always at risk during the rise and fall of powers. It was completely destroyed during the Timurid invasion. But during the Safavid era the city thrived once more. In the 18th century, Hamedan surrendered to the Ottomans, but Hamedan was retaken by Nader Shah Afshari, and under the peace treaty between Iran and the Ottomans it was returned to Iran.
According to local Jewish traditions, the City of Hamedan is mentioned in the Bible, as the capital of Ancient Persia in the days of King Ahasuerus in the Book of Esther. It was then known as Shushan. The Tombs of Mordecai and Esther are located in modern-day Hamedan.
Hamedan today 
Administrative divisions 
The province has a population of over 1,820,000 million. (As of 2008) The province is divided into 8 Shahrestans (≈counties), which in turn are divided into 23 Bakhshs (≈districts) in total. These divisions are shown on the map as well as the center of each county and the neighbor provinces.
Colleges and universities 
- Hamedan Medical University
- Bu-Ali Sina University
- Hamedan University of Technology
- Islamic Azad University of Hamedan
- Payam Noor University of Hamedan
- Payam Noor University of Bahar
- Payam Noor University of Kabootar Ahang
- Payam Noor University of Toyserkan
- Payam Noor University of Nahavand
- Payam Noor University of razan
- Islamic Azad University of Toyserkan
- Islamic Azad University of Nahavand
- Malayer University
The Cultural Heritage of Iran lists 442 sites of historical and cultural significance located in Hamedan, thus making the province a rich one in terms of historical attractions.
Some of the most popular sites are:
- Tomb of Baba Taher the poet
- Ganj Nameh inscriptions of Darius The Great
- Tomb of Esther and Mordechai
- Ali Sadr (Ardeles) cave
- Tomb of Avicenna
- Waterfall of Ganjnameh
- Stone Lion of Hamedan
- Abass Abad jangle(Baugh)
- Qorban Building
- Alavian Tomb
- Eram Park
- Hegmatane (Ekbatan) City of 5000 years ago
- Imam(pahlavi) Sq
- Alvand Mountain
- Grand Bazzar of Mozafarieh
-  National Census 2006
- Hamadan provinces - Population and ethnicites accessed on March 12, 2006. Replaced with Archive link on February 22, 2010.
- جمعيت و قوميتها
- Official statistics from 1997 (1375) - Hamadan provinces - Population and ethnicites -  accessed on March 12, 2006. Replaced with Archive link on Feb 22, 2010.
- Official website of Hamedan Governorship
- Hamedan Cultural Heritage Organization
- Official website of Hegmataneh (Ecbatana)
- Hamadān entries in the Encyclopædia Iranica
- Photos from around Hamadan province -Includes Alisadr Cave and Hamadan City.
||Kurdistan Province||Zanjan Province||Qazvin Province|
|Kermanshah Province||Lorestan Province|