Preston Alexander Kilwien (born November 25, 1996) is an American professional soccer player who currently plays as a defender for USL League One side Texoma FC.

Kilwien made 24 appearances, among the most of rookies on the team, and started 18 games as a central defender for NYRB II in 2019.

[12] On January 23, 2023, he signed with defending USL League One champion South Georgia Tormenta on a two-year contract.

[13] On April 25, 2023, Kilwien was named to the USL League One Team of the Week after claiming his first professional assist on a Matheus Cassini match-winning goal at One Knoxville SC.

Kilwien ended the 2023 season with 28 USL League One appearances and two in the US Open Cup, finished second on the team in minutes played with 2,222 and led the squad in passes with 1,296, clearances with 101 and blocks with 21.

Kilwien led the team in minutes played and blocked shots, while finishing second in passing, interceptions and clearances.

During his four years, FGCU compiled a 38–19–11 record, claimed two ASUN Conference championships and earned a second round 2016 NCAA Division I Men's Soccer Tournament appearance.

[22] While at college, Kilwien played for Premier Development League sides South Florida Surf, Seattle Sounders U23 and Tampa Bay Rowdies U23.

He also spent time as a youth with Crossfire Premier (Redmond, Wash.), Snohomish United (Shohomish, Wash.) East Bay Eclipse (Moraga, Calif.) and Diablo FC (Concord, Calif.).

In 2016, he helped lead FC Florida to the United States Youth Soccer Association U19 national championship final.

In October, 2022 he explained his dual citizenship status during a Charleston Battery recognition of Hispanic Heritage Month.