US singer Ariana Grande has reportedly turned down a damehood offered by Britain following her response to the bombing at her Manchester Arena concert.

The 25-year-old is said to have been offered the award after she visited victims of the terror attack in hospital and organised a charity gig.

But the singer felt it was too soon to accept in the wake of the atrocity that killed 23 people, including the suicide bomber.

Grande was physically unharmed in the May 2017 attack, but has suffered from post-traumatic stress disorder.

Armed police (left) at Manchester Arena on May 23rd 2017 | Image: Peter Byrne/PA Archive/PA Images

The Sun quoted a source as saying: "Ariana was flattered but said it was too soon. She explained she was still grieving. So were scores of families.

"She feared some affected might see it as insensitive. The committee wrote to her but she politely said no."

According to the paper, another source added: "She was deeply moved and honoured. She didn't decline it as such but explained it was not the right time to accept."

Last month, the singer described the Manchester Arena terror attack as something "that seems impossible to fully recover from".

In the fourth episode of her docu-series, Ariana Grande: Dangerous Woman Diaries, the star shared a letter about the attack.

The letter said: "I'm writing to you this 22 February 2018. It's been eight months since the attack at our show at the Manchester Arena.

"It's impossible to know where to start or to know what to say about this part. 22 May 2017 will leave me speechless and filled with questions for the rest of my life.

"Music is an escape. Music is the safest thing I've ever known.

"When something so opposite and so poisonous takes place in your world that is supposed to be everything but that... it is shocking and heartbreaking in a way that seems impossible to fully recover from."

Handout photo of Ariana Grande performing during the 'One Love Manchester' benefit concert in June 2017 | Image: Dave Hogan for One Love Manchest/PA Archive/PA Images

A couple of weeks after the bombing, Grande set up the 'One Love Manchester' benefit concert on June 4th, which raised money for victims and their relatives.

The singer performed along with a number of stars including Take That, Little Mix, Justin Bieber, and Liam Gallagher.

Dame is an honorific title and the feminine form of Sir.

The honours recognise achievements, personal bravery and services to the UK and British overseas territories.

The most well-known honours are probably MBEs and OBEs, but there are also six different orders of chivalry and four orders of merit.