A source told The Sun: "Calvin and Aarika split around the time of the Brits last month. They were both into each other for a long time but it just didn't work out and they'll stay friends.
"Calvin is always really busy and is constantly travelling around to DJ gigs so he's happy to be single for a while."
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Calvin Harris has reportedly split from model Aarika Wolf
The Scottish DJ first met American model Aarika in August after she was cast to appear in the music video for his single Blame. Their relationship came to light in September when a friend posted a picture of the two kissing on board a private jet after the iHeartRadio music festival in Las Vegas.
Calvin and Aarika were last seen together at the Giorgio Armani Grammys party in February. The 30-year-old has since spent time in London for events including the Brit Awards, and it appears the long distance took its toll on their relationship.
The romance was Calvin's first high profile relationship following his split from Rita Ora. The musicians dated for almost a year and worked together on her hit single I Will Never Let You Down.
The couple dated for seven months
Calvin announced their split on Twitter in June after months of rumours that they had gone their separate ways.
"To address speculation – myself and Rita ended our relationship some time ago," he wrote. "She is a beautiful, talented woman & I wish her all the best."
Five days later, the Black Widow singer responded: "I've had an amazing time w Calvin, & I will treasure the memories… Life can only be understood backwards but it must be lived forwards."