Hannah Reji Koshy is a young talented model and film actress. She prominently works in Malayalam language film. She was born in Ernakulam, Kerala. She completed her school education from Assisi Vidyaniketan. She did her graduation in Dental Health from Sharavathi College of Dental Studies, Karnataka. After completing her graduation, she started pursuing her professional career as Dentist.

But her passion towards modelling compelled her to leave the profession and she started participating in several Beauty contests. She was amongst the top finalist in Miss India South Contest. She also participated in the Miss Beautiful Skin contest in 2015, Miss Moksha Contestin 2012, Miss Personality- Mannappuram Miss South India in 2015. She has won several titles like the Miss Queen of India in 2015, Femina Miss Kerala. She became popular after winning these beauty contest show.

She was approached by several Brand and Fashion house to promote their brand. She continued working as a model in several advertisements and media campaigns. She also portrayed the lead role in a short film Living Nirbhaya, highlighting the issue of sexual abuse of women and increasing incidents of Molestation. This film was released on the occasion of International Women's Day. With her gracious performance and acting skills, she was able to impress the audience and filmmakers.

After this short film, she got the opportunity to debut in a Malayalam film industry. She started her career with the movie Darvinte Parinamam, Ralshadikari Baiju Oppu, Pokkiri Simon. Darvinte Parinamam is a Malayalam film of the action genre. It was released in 2016, directed by Antony. Starring Chemban Vinod Jose, Prithviraj Sukumaran, Balu Varghese, Chandini Sreedharan, Hannah Reji Koshy.

The movie was produced by Santhosh Sivan, Arya, and Prithviraj. In this film, Hannah portrayed the role of Ancy. She was appraised for her acting skills. The movie was critically appreciated and commercially successful at the box office. Rakshadhikari Baiju Oppu is a Malayalam language comedy film, released in 2017. It was directed and written by Ranjan Pramod.

It was jointly produced by Satheesh Kolam and Alexander Mathew. Starring Aju Varghese, Biju Menon, Hannah Reji Koshy in the main role. The movie was appreciated by the critics and it was a big hit at the box office. In the film, Hannah played the character of Ajitha. Pokkiri Simon is a 2016 released Malayalam language movie. It was directed by Jijo Antony and produced by Krishna Sethukumar.

The story of this film was written by K.Ampady. Starring Prayaga Martin, Baiju Saiju Kurup, Ashokan, Sunny Wayne, Appani Sonath, Dileesh Pothan. In the movie, Hannah played the role of Mariamma.