Meghna Alam is a Bangladeshi actress, environmental advocate, and the Miss Earth Bangladesh 2020 winner. She is also the chairperson of the Miss Bangladesh Foundation. She was detained in April 2025 as an alleged national security threat. Her detention has come under scrutiny from various human rights organizations and media claiming it was unlawful.

Alam founded and served as the CEO of Ekottro Foundation. She worked as a woman leadership trainer. She competed in Miss Universe Bangladesh in 2019 and finished 18th. In 2020, Alam competed and won the Miss Earth Bangladesh.

On 10 April 2025, Alam was detained under the Special Powers Act, 1974 following an appeal by the Detective Branch of the Dhaka Metropolitan Police. Her detention was ordered by Metropolitan Magistrate Sefatullah for 30 days under Section 3(1) of the act, which allows for preventative detention to ensure public safety and law and order. Her arrest followed rumours of abduction after being detained while live on Facebook. Authorities stated that Alam had been detained for allegedly spreading misinformation that could harm Bangladesh's diplomatic relationships and cause potential economic loss. Following the court's order at midnight, Alam was transferred to Kashimpur Central Jail. Following a complaint by a senior diplomat at the Embassy of Saudi Arabia in Bangladesh, she was detained. She is believed to be in a relationship with Essa Yousef Essa Al Duhailan, ambassador of Saudi Arabia to Bangladesh. She was placed in 30-day detention under a security order under the Special Powers Act, which allows for detention without trial. Amnesty International expressed concerns over her detention.