The maritime vocabulary of the Middle English poet John Gower provides a window into the seafaring culture of 14th-century London. A survey of phrases and terms that refer to nautical technology in Gower's Confessio Amantis reveals the poet's immersion in Anglo-French largeship traditions as well as a direct experiential connection to Iberian or Mediterranean trade networks. By analyzing the words of Confessio Amantis in their original historical and nautical contexts, this thesis argues that Gower, within his poetry, recorded the voice of medieval London's maritime community.