First joining Guangzhou in 2015, Paulinho went on to win three CSL titles in his time at the Tianhe Stadium, as well as the AFC Champions League in the year he signed for them.
However, the COVID-19 pandemic saw Paulinho unable to join up with the squad due to Chinese travel restrictions imposed on Brazil, and the mutual decision to part ways was made last month.
With his free agent status, it did not take long at all for Al Ahli to swoop, with the four-time Saudi Professional League champions announcing his arrival on Thursday evening on a three-year contract.
Al Ahli are currently preparing for the new domestic season following a disappointing 2020-21 campaign that saw them finish 8th in the 16-team competition.
They will also not be involved in continental football in the second half of the year, having been eliminated from the group stage of the AFC Champions League back in April.