"Lighthouse" is a song recorded by American singer-songwriter and record producer Marian Renta released digitally as a single on November 3, 2023. The single's release was accompanied by the song's lyric video that premiered the same day. "Lighthouse" is built upon a midtempo house beat supporting an ambient, soft synth, pop-EDM soundscape. Written and produced by Renta, the song's lyrical theme is centered around finding the strength to break free from a toxic relationship and saving oneself through overcoming fears. "Lighthouse" showcases a fusion of Renta's more niche influences such as garage house, loft, and tropical house.