永井一郎是日本的演员、配音员、旁白。大阪府池田市出身。所属过的艺能事务所有剧团三期会、东京俳优生活协同组合、同人舍制作、东京美术职业，以及青二Production。

Ichiro Nagai (永井 一郎 Nagai Ichirō, May 10, 1931 – January 27, 2014) was a Japanese voice actor from Ikeda, Osaka. He was previously affiliated by Tokyo Actor's Consumer's Cooperative Society, and was affiliated with Aoni Production at the time of his death. On January 27, 2014, while recording narration for a program in Hiroshima, Nagai suffered a bout of myocardial infarction and was found by a hotel employee. He was rushed to a hospital, where he was pronounced dead; Nagai was 82 years old at the time of his death.