"Captain Latvia" is the tenth episode of the fourth season of the American television police sitcom series Brooklyn Nine-Nine. It is the 78th overall episodes of the series and is written by Matt Lawton and directed by Jaffar Mahmood. It aired on Fox in the United States on December 13, 2016. The episode was seen by an estimated 2.15 million household viewers and gained a 0.9/4 ratings share among adults aged 18–49, according to Nielsen Media Research. The episodes received mixed-to-positive reviews from critics, who praised Joe Lo Truglio's performance but the plotlines received criticism.