Roger Friedman of Fox News Channel wrote that "Irreplaceable" is a "clever ballad" and the most memorable track on "B'Day". He added that it has the most potential of catching on with fans quickly, and that it is the only song on the album that "you might actually want to sing along to". Mike Joseph of PopMatters commented that "'Irreplaceable' tellingly, was co-written by Ne-Yo, who may not be the powerhouse vocalist Beyonce is, but has significantly stronger songwriting skills. It's the best song on the album—perhaps Ms. Knowles should take a hint." Tim Finney of "Pitchfork Media", called "Irreplaceable" the best song on "B'Day" and praised its overall production, writing: