"If This Isn't Love" is a song recorded by American recording artist Jennifer Hudson. It was written and composed by Planet VI, brothers Theron and Timothy Thomas, along with Brian Kennedy for her eponymous debut album, released in 2008. Production on the song was handled by the latter and Harvey Mason, Jr.. Musically, it is a midtempo contemporary R&B ballad with pop elements, built along on a piano and electric guitar sounds.

The song was released as the second single from the album following "Spotlight" in 2009. Upon release, "If This Isn't Love" was met with generally positive reviews from contemporary critics who praised the song's structure and its modern interpretation for an adult audience. On the charts, the track failed to make much impact, though it reached number five of the US Billboard Hot R&B/Hip-Hop Songs and the top forty of the UK Singles Chart. Hudson promoted the song on The Ellen DeGeneres Show on March 26, 2009 and on American Idol on Wednesday’s results show on April 15, 2009.

Andy Kellman from Allmusic stated that "Hudson's voice is smoothed out through the fluttery "If This Isn't Love" (not to mention spiked with grating male grunts of "Hey!"), nearly unrecognizable until the point where she belts."Slant Magazine said that " 'If This Isn't Love' succeeds at sounding completely modern without eschewing the standard adult-contemporary song structure that's tailor-made for pipes like Hudson's."

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