"Neighbors Know My Name" is a song by American R&B singer Trey Songz. It was written by Songz with Patrick Hayes and Troy Taylor, who produced the song with John "$K" McGee. It was released to rhythmic and urban airplay as the fifth and final single from his third studio album, Ready on February 16, 2010. The song, described as being hook-heavy and having a powerful bassline, received generally positive reviews from critics. The song reached forty-three on the Billboard Hot 100 and four on the Hot R&B/Hip-Hop Songs chart, becoming Songz's third consecutive top five R&B hit.

Melanie Bertoldi of Billboard gave the song a positive review, stating, "he utilizes his vocal range here, including the teasing falsetto with which he gently instructs his partner to 'take this pillow right here/If you bite it, they won't hear.' Bertoldi also complimented the song's production, commenting, "'Neighbors' employs a knocking bassline and drip-drop effect to provide the ideal erotic backdrop for Songz's dirty talk." She also pointed out that the song was inspired by Songz's "stylistic antecedent", R. Kelly. Mark Edward Nero of About.com also said the song was R. Kelly influenced, calling the song among the album's best material. Nero said, "Trey brags about how the people next door probably know who he is because his woman screams it during sex. 'While I be bangin' on your body, they be bangin' on our wall,' he sings. 'While they be dreamin', you be screamin', now they bangin' on our door.'"Ready album reviews from Allmusic and PopMatters, noted the track as a standout, with Tyler Lewis of the latter stating the "good" songs like "Neighbors" and "I Need A Girl" "thump as they should". Ken Capobianco of the Boston Globe complimented the song's braggadocio along with "I Invented Sex", however commented that the song was "unintentionally humorous". Andrew Rennie of Now Magazine said the album's hook-heavy and playful style was evident on the track and on "LOL".

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