Lachlan Bayliss

Bayliss' formative years as a footballer were spent in Darwin, Northern Territory, spending 4 years playing at youth level for Mindil Aces, before joining the youth set up at Central Coast Mariners as a 16 year old in 2018.

Central Coast Mariners

Having come through the age groups for the Central Coast Mariners Academy, Bayliss was promoted into the NPL First Grade team for the Mariners for the 2022 season, with the Mariners competing in the newly renamed NSW League One competition, the second tier in the National Premier Leagues NSW system. Bayliss made an immediate impact for the team, ending the season as the equal top scorer in the competition with 13 goals in 22 appearances. The season saw the team win the Premiership for finishing top of the table and achieve promotion to the top flight, however losing the Grand Final 2–1 after extra time to St George City. In January 2023, Bayliss was signed on a scholarship contract with the Mariners, joining his older brother James in training with the Mariners first team squad for the 2022–23 season. Bayliss continued his fine form into the 2023 NPL season, with the team now competing in the top flight following the previous season's promotion. Bayliss was a key member of the team, scoring 9 goals in 21 appearances. Bayliss had a standout performance against North West Sydney Spirit at Pluim Park, being involved in all 4 goals for the side in a 4–2 victory, initially with two assists and then scoring two goals in two…

Bayliss was eligible to represent both Australia and New Zealand, through his father being born in New Zealand. In August 2023, Bayliss was called up to New Zealand U23 squad for OFC Olympic qualification matches against Papua New Guinea and Fiji. In July 2024, he was named as an alternate player for the New Zealand Olympic football team. On 23 July 2024, Bayliss was announced as being included in the squad proper after Riley Bidois withdrew due to injury and he subsequently appeared in all three of New Zealand’s matches. On 16 March 2026, Bayliss earned his maiden call-up to the All Whites for the FIFA Series, where the team were scheduled to face Finland and Chile. Bayliss made his debut in a 0–2 loss to Finland.

As of 26 August 2026

Bayliss' brother James also played for the Central Coast Mariners, making 13 A-League appearances and also played for Auckland FC in during the 2026 OFC Professional League. The brothers featured together in the Mariners NPL first grade sides in 2022 and 2023. They are not related to three-time Superbike World Champion Troy Bayliss.