"Sin Ti" (English: "Without You") is a song by Romanian singer Inna, digitally released on 18 January 2019 by Global Records and Roc Nation as the third single from her sixth studio album Yo (2019).

[6] Libertatea called it "a sincere love song and a direct and moving declaration", while Jon Pareles of The New York Times thought the track was about "sudden infatuation".

Currinn likened "Sin Ti" to Inna's "Ra" (2018), viewing it as continuing her change in direction, while also reflecting elements of the singer's previous dance material.

[6] Refinery29's Courtney Smith wrote that the singer "creat[ed] a sense of space and longing with sparsity [...] [b]ut the intentionality in her delivery on the chorus is what makes the song sing".

[9] An accompanying music video for "Sin Ti" was uploaded to Inna's official YouTube channel on 18 January 2019,[5] preceded by a teaser released the day before.

[13] In the video, a barefoot Inna is seen sitting backwards on a "retro" chair in a field, wearing a fedora hat alongside an "off-the-shoulder" black-and-white dress which has a middle-split.