Christine Day (born 23 August 1986) is a Jamaican sprinter who specializes in the 400 metres.

[2] She represented Jamaica at the 2012 Summer Olympics in the individual 400m and in the 4x400 metre relay.

[3] Day was eliminated in the semifinals of the individual 400m but she and teammates Rosemarie Whyte, Shericka Williams and Novlene Williams-Mills won bronze in the relay.

Day won a bronze medal at the 2014 Glasgow in the women's 400m behind teammates Stephanie McPherson and Novlene Williams-Mills.

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