Gabby Ondrejech is a Los Angeles based designer and costume creator.

Born and raised in Cleveland, Ohio, she earned her Bachelor’s Degree in Fashion Design from Kent State University in 2012. The following year, she relocated to Los Angeles, where she began her career in the fashion industry as a designer. After three years in fashion, she transitioned into costuming and costume construction for film and television. Since 2016, she has worked as a set costumer on independent films while also creating and tailoring costumes for live entertainment.

In 2023, she founded Terra Siare, an alternative womenswear label dedicated to eco-friendly and ethically crafted apparel, designed exclusively by her. In addition to serving as founder and designer, she also developed each piece from concept to completion, handling pattern making and sample construction herself. Her work has been described as a juxtaposition of hard and soft - feminine yet strong- with a futuristic perspective on retro silhouettes. Through sculptural fabric manipulation, she creates designs that both flatter the figure and envelop the wearer in bold, architectural shapes.