Marlet Ospino Ramos (born 6 September 2004) is a Colombian sprinter. She is the national record holder over 60 metres, and in 2025 became national champion over 100 metres.

Career Ospino is from Barranquilla. She was a bronze medalist in the women's 4 x 100 metres at the 2022 World Athletics U20 Championships in Cali, Colombia.

She ran as part of the 4 × 100 m relay team at the 2024 World Relays Championships in Nassau, Bahamas. She won the silver medal in the 100 metres and the gold medal in the 200 metres at the 2024 South American Under-23 Championships in Bucaramanga, Colombia in September 2024.

She equalled her Colombian national record of 7.22 seconds to win the silver medal behind Ana Carolina Azevedo of Brazil at the 2025 South American Indoor Championships in Cochabamba in February 2025.

She won the 100 metres at the Colombian Athletics Championships in August 2025, in 11.22 seconds. She was a silver medalist in the 200 metres at the 2025 Junior Pan America Games in Luque, Paraguay.

In September 2025, she competed in the 100 metres at the 2025 World Championships in Tokyo, Japan.

International competitions Representing 2021South American U18 ChampionshipsEncarnación, Paraguay2nd 200 m 25.21 s1st 4 × 100 m relay46.18 s 3rd 8 × 300 m relay 5:16:39 2022World U20 ChampionshipsCali, Colombia3rd 4 × 100 m relay 44.59 sSouth American U23 ChampionshipsCascavel, Brazil3rd 4 × 100 m relay 44.74 s2023South American U20 ChampionshipsBogotá, Colombia4th 100 m 11.71 s Central American and Caribbean GamesSan Salvador, El Salvador4 × 100 m relay DQ2024 World RelaysNassau, Bahamas14th (r)4 × 100 m relay 43.92 sIbero-American ChampionshipsCuiabá, Brazil2nd 4 × 100 m relay44.34 sSouth American U23 ChampionshipsBucaramanga, Colombia 2nd 100 m 11.54 s1st 200 m 23.25 s4 × 100 m relay DNF2025South American Indoor ChampionshipsCochabamba, Bolivia2nd 60 m 7.22 s = South American ChampionshipsMar del Plata, Argentina7th 100 m 11.44 s4 × 100 m relay DNFJunior Pan American Games (U23)Asunción, Paraguay6th 100 m 11.65 s 2nd 200 m 23.14 s 3rd 4 × 100 m relay 44.01 s World ChampionshipsTokyo, Japan49th (h)100 m 11.63 sBolivarian GamesLima, Peru5th100 m11.74 s200 mDQ1st4 × 100 m relay44.00 s2nd4 × 100 m mixed relay42.05 s 2026Ibero-American ChampionshipsLima, Peru5th 100 m 11.31 s2nd200 m 22.83 s wCentral American and Caribbean GamesSanto Domingo, Dominican Republic200 mDQ5th 4 × 100 m relay 43.92 s5th 4 × 100 m mixed relay 41.55 s South American GamesSanta Fe, Argentina 8th 100 m 11.81 s200 m –4 × 100 m relay–4 × 400 m relay–

References