Salahuddin Ahmed (সালাহউদ্দিন আহমেদ) is a Bangladesh Nationalist Party politician serving as the current Minister of Home Affairs and member of parliament from Cox's Bazar-1 constituency since 2026. He previously served as the state minister of communication and member of parliament during 1996–2006.

In 2015, he allegedly enforced disappeared in Dhaka and reappeared two months later in Shillong, India, under Indian police custody. In 2018, he was acquitted by the Indian court. Later on 28 February 2023, he was also acquitted by the appellate court.

Ahmed was born on 30 June 1962 in Sikdar Para village of Pekua Union, then under Chakaria Upazila in Cox’s Bazar. His father was Saeedul Haque, and his mother was Begum Ayesha Haque.

In 1977, Ahmed passed the Secondary School Certificate (SSC) examination from Shilkhali High School in Pekua with record marks. He also achieved outstanding results in the Higher Secondary Certificate (HSC) examination from Chittagong College in 1979. In 1980, he enrolled in the Department of Law at the University of Dhaka, where he completed his LL.B. (Honours) degree in 1984 and his LL.M. degree in 1986 with distinction. During his time at university, he served as a central vice president of the Bangladesh Jatiyatabadi Chhatra Dal and also acted as its president for a period.

He passed the 7th Bangladesh Civil Service (BCS) examination in the administration cadre in 1985 and joined government service on 15 February 1988.

Ahmed served as the assistant private secretary to the then prime minister, Khaleda Zia, when the Bangladesh Nationalist Party (BNP) came to power in 1991. In 1996, Ahmed resigned from government service and took charge as the convenor of the Cox’s Bazar District BNP, later winning the parliamentary election the same year. He was subsequently elected directly through party councils and served two consecutive terms as president of the Cox’s Bazar District BNP. In 2010, he was appointed Joint Secretary-General of the BNP’s Central Executive Committee at the party’s national council. He was later appointed as the State Minister for Communications during 2001–2006 in the third Khaleda cabinet.

Ahmed also served as the joint general secretary of the BNP. In January 2015, he was appointed as the party's spokesperson by Khaleda Zia, following the arrest of the previous spokesperson, Rizvi Ahmed.

In March 2015, Ahmed disappeared in Uttara, Dhaka. The Bangladesh Nationalist Party said he had been arrested by law enforcement agencies in Bangladesh and, according to a witness, by the Rapid Action Battalion. He reappeared two months later in Shillong, Meghalaya, India. He was arrested by the Indian police and charged under the Foreigners Act for entering India illegally. On 3 June 2015, he was charged by Shillong Police and was interned in the North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, where he was receiving treatment. More than 3 years later, in October 2018, the East Khashi Hill District and Sessions Judge's Court in Meghalaya, India, acquitted him over the trespassing case. While in the Indian jail, the Bangladesh Nationalist Party appointed him as a member of its standing committee. Salahuddin Ahmed was acquitted and granted permission to return home by the appellate court in Shillong on 28 February 2023.

Ahmed is married to Hasina Ahmed, with two sons and two daughters.