Jeremiah O'Connell (born February 17, 1974) is an American actor, director, and television personality. He is known for his roles as Quinn Mallory in the television series Sliders, Andrew Clements in My Secret Identity, Vern Tessio in the film Stand by Me (1986), Joe in Joe's Apartment (1996), Frank Cushman in Jerry Maguire (1996), Derek in Scream 2 (1997), Charlie Carbone in Kangaroo Jack (2003), and Detective Woody Hoyt on the drama Crossing Jordan.

He starred in the Canadian science-fiction sitcom My Secret Identity from 1988 to 1991 as the teen hero who develops superhuman traits. During a summer break from NYU, Jerry starred in the feature film Calendar Girl alongside Jason Priestley and Gabriel Olds. He also appeared in the short-lived ABC sitcom Camp Wilder, with Jay Mohr, and Hilary Swank in 1992.

O'Connell starred as Detective Woody Hoyt on the NBC crime drama Crossing Jordan (2001-2007). He played Hoyt in several episodes of Las Vegas.

He starred as Pete Kaczmarek in the single 2010–2011 season of the CBS dramedy The Defenders, alongside Jim Belushi. He also had a starring role in the comedy horror film Piranha 3D (2010). On May 15, 2013, it was announced that O'Connell would play Stuart Strickland on We Are Men, alongside Tony Shalhoub.

He voices Commander Jack Ransom on the animated series Star Trek: Lower Decks.

In July 2021, CBS announced that O'Connell would be joining The Talk as a permanent co-host, replacing Sharon Osbourne. He co-hosts, with his wife Rebecca Romijn, the reality dating show The Real Love Boat (2022) and hosts a version of Pictionary (2022) syndicated on FOX .