Who holds the medically verified record for the longest penis and when was it measured?

Checked on January 9, 2026
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Executive summary

The medically verified record for the longest penis currently cited in the available reporting belongs to Matt Barr, measured at roughly 37 cm (about 14.4–14.5 inches) and described as the “world record largest penis to be medically verified” in recent summaries [1] [2]. This verification and the publicity around it are recent developments, with reporting linking Barr’s measurement and independent confirmation to 2024–2025 coverage [2].

1. How the current “medically verified” claimant surfaced

Matt Barr has been presented by multiple outlets as the most credible, medically verified claimant to the informal title, with one site that chronicles his case describing independent confirmations by medical professionals and citing a measurement of 37 cm (14.4–14.5 inches) along with circumference and flaccid measures reported in companion material [2]. That same reporting frames Barr’s record as surpassing earlier documented figures and says the measurement and publicity around it are part of a 2024–2025 narrative around his story, including an upcoming book and media appearances tied to those dates [2].

2. Why earlier claimants remain part of the debate

Longstanding public figures in this informal contest include Jonah Falcon, who has long claimed a 34 cm (13.5-inch) erect length but, according to reporting, has refused independent verification of that figure, meaning Falcon’s widely cited claim remains unverified in the medical sense [1]. Another widely publicized claimant, Roberto Esquivel Cabrera, has been the subject of conflicting coverage: dramatic numbers (up to 48 cm in some reports) circulated in the press, but a CT scan reported by Marca concluded much of Cabrera’s apparent length was foreskin and inflamed tissue and that the measurable shaft was closer to 18 cm, undermining the claim that his anatomy represented the longest medically validated penis [3].

3. What “medically verified” signifies in this reporting

The phrase “medically verified” as used in the available sources denotes cases where measurements have been conducted or validated by physicians or via imaging rather than by sole self-report or anecdote; the reporting specifically favors claims supported by independent clinical measurement over personal assertions [2] [1]. For example, the Cabrera case was reassessed with CT imaging that revised earlier public estimates downward, illustrating how imaging and clinical assessment can materially change public perception of such claims [3]. The reporting also notes historical scientific records—such as a 1992 study listing a 27 cm measurement—that serve as earlier, peer-documented points of comparison [2].

4. The limits of the available reporting and remaining uncertainties

The sources available here do not include a universally accepted, single registry like an international medical body maintaining an official living record for this measure, and some reportage mixes self-reported claims, media coverage, and clinic-verified measurements without a single standardized protocol [1] [2] [3]. While Matt Barr is described in recent coverage as holding the medically verified record and his measurement is tied to 2024–2025 publicity, the materials provided are primarily media and specialist site reports rather than a peer-reviewed medical journal pronouncement or a formal institutional record, and therefore readers should treat the designation as contingent on the standards and sources those outlets used [2] [1].

Want to dive deeper?
What medical protocols and measurement standards do urologists use to verify penis length in clinical studies?
How did CT imaging change the public and medical understanding of Roberto Esquivel Cabrera’s measurements?
What peer-reviewed studies document extreme penile lengths and how do they compare to media-reported cases?