The Cincinnati (LCS 20) is the tenth ship in the Independence-class littoral combat ships and the fifth ship in the U.S. Navy named in honor of the city of Cincinnati, Ohio.

April 10, 2017 The keel authentication ceremony for the future-USS Cincinnati was held at the Austal USA shipyard in Mobile, Ala.

May 5, 2018 The Pre-Commissioning Unit (PCU) Cincinnati was christened during a 10 a.m. CST ceremony at Austal USA shipyard in Mobile, Alabama. Penny S. Pritzker, Chicago billionaire and the 38th U.S. Secretary of Commerce, served as sponsor of the ship.

May 21, PCU Cincinnati exited the assembly bay #4 at Austal's facility for the first time and was transported down river, while sitting on a deck barge, to BAE Systems Southeast Shipyard's floating dry-dock; Launched on May 22; Moved to Vessel Completion Yard on Oct. 5.

December 20, The Cincinnati moored at Vessel Completion Yard after underway for the first time to conduct Builder's (Alpha) trials.

February 8, 2019 LCS 20 moored at Vessel Completion Yard after a one-day underway for acceptance trials with the INSURV.

June 21, U.S. Navy accepted delivery of the future USS Cincinnati during a short ceremony aboard the ship.

September 28, PCU Cincinnati (Crew 214 - Blue) departed Mobile, Ala., for the last time; Moored at Berth 7, West Pier Terminal in Port of Gulfport, Miss., for a nine-day visit in preparation for its commissioning ceremony, on Saturday afternoon.

October 3, Cmdr. Jedediah A. Kloppel relieved Cmdr. Kurt A. Braeckel as CO of the Cincinnati (Blue) during a pierside ceremony in Port of Gulfport.

October 5, USS Cincinnati was commissioned during a 10 a.m. CDT ceremony in Gulfport, Mississippi.

October 10, The Cincinnati moored at Wharf C1 on Naval Station Mayport, Fla., for a two-day port call; Moored at Quay Wall East on Joint Expeditionary Base Little Creek-Fort Story, Va., from Oct. 14-29; Transited the Windward Passage southbound on Nov. 1; Moored at Naval Station Guantanamo Bay, Cuba, for a brief stop to refuel on Nov. 1.

November 4, USS Cincinnati moored at Pier 16 in Port of Cristobal, Panama, for a one-day stop to refuel; Transited the Panama Canal southbound on Nov. 5; Moored at Marina Fuel Dock in Golfito, Costa Rica, from Nov. 7-10; Moored at Cruise Ship Dock 3 in Puerto Vallarta, Mexico, from Nov. 15-18.

November 20, USS Cincinnati moored at Berth 5, Pier 5 in its homeport of Naval Base San Diego, Calif., for the first time; Underway for routine operations from Jan. 15-16.

January 30, 2020 The Cincinnati moored at Bravo Pier, Naval Air Station North Island for a brief stop to onload ammo before underway in the SOCAL Op. Area; Returned home on Jan. 31; Underway again from Feb. 12-13; Day-long underway for Final Contract Trials (FCT) with the INSURV on March 4.

April 3, LCS 20 moored at Berth 5, Pier 5 on Naval Base San Diego after a three-day underway off the coast of southern California; Underway again from April 29- May 1, May 11-18 and June 8-11.

September 21, USS Cincinnati returned to homeport after a brief underway off the coast of San Diego.

October 2, The Rotational LCS Crew 206, commanded by Cmdr. Colin A. Corridan, assumed command of the Cincinnati after completing a crew exchange with the USS Manchester (LCS 14).

October 13, USS Cincinnati moored at Berth 5, Pier 5 after a brief underway off the coast of San Diego; Underway again from Nov. 2-3, Nov. 5-7 and Nov. 30- Dec. 1; Moored at Bravo Pier for a brief stop on Dec. 10.

January 18, 2021 The Cincinnati moored at Berth 5, Pier 5 on Naval Base San Diego after a three-day underway in the SOCAL Op. Area; Underway again from Feb. 1-3, Feb. 8-13 and Feb. 17-27; Moored at Bravo Pier for a brief stop to onload ammo on April 1.

April 9, The Cincinnati moored at Berth 5, Pier 5 after a four-day underway for routine training off the coast of southern California; Underway again from May 17-18 and May 19; Moored at Bravo Pier for a brief stop to onload ammo on May 20; Returned home on May 21; Underway again from June 1-7.

June 25, USS Cincinnati moored at Navy Fuel Farm (NFF) on Naval Base Point Loma for a brief stop to refuel before underway in the SOCAL Op. Area; Brief stop at NFF again on July 3; Returned home on July 6.

July 30, Cmdr. Clayton C. Beas relieved Cmdr. James H. Hoey as CO of the USS Charleston (LCS 18) Blue during a change-of-command ceremony on board the Cincinnati.

August 3, USS Cincinnati departed Naval Base San Diego in support of Large Scale Exercise (LSE) 2021; Moored at NFF for a brief stop to refuel on Aug. 6; Moored at Berth 2, Pier 5 after suffered an engineering casualty, while underway approximately 20 n.m. off the coast of Point Loma, on Aug. 12.

August 13, LCS 20 moored at Berth 2, Pier 5 on Naval Base San Diego, around 10 a.m., after suffered an engineering casualty shortly after underway at 0900 local time; Moved to Navy Fuel Farm (NFF), after 11 a.m., for a brief stop to refuel; Underway again on Aug. 23; Moored at Berth 5, Pier 5 on Aug. 26.

September 4, USS Cincinnati returned to homeport after a four-day underway for routine training and in support of search-and-rescue (SAR) efforts off the coast of southern California; Underway again on Sept. 27; Moored at NFF for a brief stop to refuel on Oct. 1; Moored at Berth 5, Pier 5 on Oct. 8; Underway again from Oct. 27-29 and Nov. 2-5.

December 1, The Cincinnati departed Naval Base San Diego for routine training in the SOCAL Op. Area; Brief stop at NFF to refuel before moored at Berth 6, Pier 4 on Dec. 6; Underway again from Jan. 13-15, Feb. 28- March 4 and March 7; Moored at NFF for a brief stop on March 11; Returned home on March 14; Underway again from March 18-27.

April 22, 2022 USS Cincinnati moored at Berth 6, Pier 5 on Naval Base San Diego after a four-day underway in the SOCAL Op. Area; Underway again on May 18; Moored at NFF for a brief stop to refuel on May 20; Moored at Berth 5, Pier 5 on May 23.

June 9, The Cincinnati moored at North Mole Pier on Naval Base San Diego after an eight-day underway in the SOCAL Op. Area; Underway again on June 20; Brief stop at NFF to refuel before moored at Berth 5, Pier 5 on June 29; Underway again from June 30- July 8.

July 15, Cmdr. Robert C. Burke relieved Capt. Colin A. Corridan as CO of the Cincinnati (Gold) during a change-of-command ceremony aboard the ship.

July 29, Cmdr. Erin N. Connor relieved Cmdr. William T. Dvorak as CO of the USS Tulsa (LCS 16) Gold during a change-of-command ceremony aboard the Cincinnati.

August 18, USS Cincinnati moored at Berth 5, Pier 5 on Naval Base San Diego after a 10-day underway off the coast of southern California; Moored at NFF for a brief stop to refuel before underway again on Aug. 19; Moored at Berth 2, Pier 5 on Aug. 27; Moved to Berth 1, Pier 5 on Aug. 29; Underway again on Oct. 11; Moored at NFF for a brief stop to refuel on Oct. 19.

October 24, The Cincinnati moored at Berth 1, Pier 5 on Naval Base San Diego; Underway again on Nov. 2; Moored at NFF for a brief stop to refuel on Nov. 4; Returned home on Nov. 9; Underway again on Nov. 14; Moored at NFF for a brief stop to refuel before returned home on Nov. 18; Underway again on Nov. 25.

December 5, LCS 20 made a brief stop at NFF to refuel before moored at Berth 1, Pier 5 on Naval Base San Diego; Underway again from Jan. 17-23 and Jan. 25-27.

March 15, 2023 USS Cincinnati moored at Berth 1, Pier 5 on Naval Base San Diego after a two-day underway in the SOCAL Op. Area; Underway again on March 27; Moored at Berth 2, Pier 4 on March 28.

April 27, Capt. Douglas K. Meagher relieved Capt. Spencer P. Austin as Commander, Mine Division (MINEDIV) 12 during a change-of-command ceremony on board the Cincinnati.

May 17, USS Cincinnati moored at Berth 2, Pier 4 after a brief underway off the coast of San Diego; Moored at Bravo Pier for a brief stop before underway again on May 18.

May 23, USS Cincinnati moored at Berth 51, Outer Harbor in Port of Los Angeles, San Pedro, Calif., for a week-long visit to participate in annual Fleet Week celebration; Returned home on June 2.

June 30, The Cincinnati moored at Berth 1, Pier 4 on Naval Base San Diego after a four-day underway in the SOCAL Op. Area; Moored at NFF for a brief stop to refuel before underway again on July 6; Returned home on July ?; Underway again on July 17; Moored at Berth 6, Pier 4 on July 26.

August 26, USS Cincinnati departed homeport for routine training off the coast of southern California; Moored at at Bravo Pier for a brief stop to onload ammo on Aug. 28; Moored at Berth 6, Pier 4 on Aug. 30; Underway in support of the USS Theodore Roosevelt (CVN 71) CSG's Surface Warfare Advanced Tactical Training (SWATT) exercise, from Aug. 31- Sept. 12; Underway again from Sept. 20-26.

November 2, The Cincinnati moored at Navy Fuel Farm (NFF) on Naval Base Point Loma for a brief stop to refuel before underway in the SOCAL Op. Area; Moored at Berth 6, Pier 4 on Nov. 8; Brief underway for Parade of Ships, as part of Fleet Week, on Nov. 13; Moored at Bravo Pier for a brief stop to onload ammo before underway on Nov. 28; Returned home on Nov. 30.

December 8, USS Cincinnati moored at Berth 5, Pier 4 on Naval Base San Diego after a week-long underway in support of exercises Steel Knight 23-2 and Distant Fury Stallion, off the coast of Camp Pendleton and San Clemente Island.

May 9, 2024 Cmdr. Matthew T. Knuth relieved Cmdr. Robert C. Burke as CO of the USS Cincinnati during a change-of-command ceremony at Austal USA facility on San Diego waterfront.

May 23, USS Cincinnati moved "dead-stick" from Austal USA facility to Berth 6, Pier 1 on Naval Base San Diego.

July 26, Cmdr. Andrew J. Recame relieved Cmdr. Matthew T. Knuth as CO of the LCS 20 during a change-of-command ceremony on board the ship.

December 4, USS Cincinnati moored at Berth 6, Pier 1 on Naval Base San Diego after a two-day underway for sea trials, following a Post Shakedown Availability (PSA); Underway again on Jan. 14.

January 17, 2025 USS Cincinnati moored at Wharf 6 in Port Hueneme, Calif., for a six-day port call to conduct combat systems groom with the Naval Surface Warfare Center (NSWC); Returned home on Jan. 24; Underway again on Jan. 27.

February 7, The Cincinnati moored at Quay Wall 3 on Naval Base San Diego; Moved to Berth 6, Pier 5 on Feb. 11; Underway again on Feb. 25; Moored at Berth 2, Pier 5 on Feb. ?; Brief underway on March 10.