The experienced defender is the club's fourth summer signing.
Jesus Gamez competes with Pablo Piatti of Valencia
The 31-year old arrives on Tyneside after spending the past two years as a squad player for Diego Simone’s Atletico Madrid.
“I am really delighted to be here and I am really looking forward to this project and bringing Newcastle back to where they belong in the Premier League,” said Gamez.
Real Madrid's James Rodriguez in action with Atletico Madrid's Jesus Gamez
“My representative told me that there was strong interest from Newcastle. I was considering my options and it was the right time to leave Atletico Madrid…this is a really exciting project.”
“It was not a difficult decision at all because considering the type of player I am and I think I’ll be a really good match for English football.”
Gamez is a versatile fullback with 290 senior appearances to his name who will add great experience to the Magpies as they attempt to return to the top flight at the first time of asking.
Real Madrid's Cristiano Ronaldo in action with Atletico Madrid's Jesus Gamez
Convincing a player to swap the summit of La Liga for a Championship promotion scrap is no mean feat and it’s further indication of the pulling power of Rafa Benitez.
The Spaniard’s reputation has proven key in attracting talent and Gamez admits it played a huge role in his decision to make the switch.
Newcastle manager Rafael Benitez
“Rafa is a world class manager and somebody who knows what he is doing…that gives you confidence that there is a project here,” he added.
“Not just for this season but also for the future. I am looking forward to working with him.”
The next few weeks look set to be a busy period on Tyneside , with the high levels of transfer activity likely to continue ahead of the new campaign.
Key figures including Gini Wijnaldum and Moussa Sissoko have been strongly linked with exits – by the likes of the Telegraph – and Andros Townsend has already departed after making just 13 appearances for the club.
While these players undoubtedly possess quality, a promotion push requires complete commitment and squad unity and it is in the best interests of everyone involved if unsettled players are allowed to leave.
Will Gamez be a success at Newcastle?