Mariana Marcelino

{{Infobox sportsperson

| name = Mariana Marcelino

| full_name = Mariana Grasielly Marcelino

| image =

| imagesize =

| caption =

| fullname =

| birth_date = {{birth date and age|1992|07|16|df=yes}}

| birth_place =

| height = 1.70 m[https://data.2017.gov.taipei/atos/prod/eng/zb/engzb_athletics-athlete-profile-n165120-marcelino-mariana-grasiel.htm 2017 Universiade bio]

| weight = 84 kg

| sport = Athletics

| event = Hammer throw

| club =

| education = Santa Anna University Centre

| coach =

| pb =

| medaltemplates =

}}

Mariana Grasielly Marcelino (born 16 July 1992) is a Brazilian athlete specialising in the hammer throw.{{World Athletics}} She has won a gold medal at the 2017 South American Championships.

Her personal best in the event is 67.02 metres set in São Bernardo do Campo in 2017. This is the current national record.{{cite web|url=http://www.all-athletics.com/en-us/athlete/316791|title=All-Athletics profile|publisher=All-Athletics.com|accessdate=22 September 2017}}

International competitions

{{AchievementTable\|Event=yes}}
colspan="6"\|Representing {{BRA}}
rowspan=2\|2008 \|rowspan=2\|South American Youth Championships \|rowspan=2\|Lima, Peru \|bgcolor=silver\|2nd \|Shot put \|13.45 m
bgcolor=silver\|2nd \|Hammer throw \|47.80 m
2009 \|World Youth Championships \|Brixen, Italy \|7th \|Shot put \|13.65 m
rowspan=2\|2011 \|Pan American Junior Championships \|Miramar, United States \|5th \|Hammer throw \|51.77 m
South American Junior Championships \|Medellín, Colombia \|9th \|Hammer throw \|3.25 m
2012 \|South American U23 Championships \|São Paulo, Brazil \|bgcolor=silver\|2nd \|Hammer throw \|61.66 m
rowspan=2\|2014 \|Ibero-American Championships \|São Paulo, Brazil \|6th \|Hammer throw \|58.10 m
South American U23 Championships \|Montevideo, Uruguay \|bgcolor=silver\|2nd \|Hammer throw \|61.18 m
2016 \|Ibero-American Championships \|Rio de Janeiro, Brazil \|bgcolor=cc9966\|3rd \|Hammer throw \|60.91 m
rowspan=2\|2017 \|South American Championships \|Asunción, Paraguay \|bgcolor=gold\|1st \|Hammer throw \|66.83 m
Universiade \|Taipei, Taiwan \|7th \|Hammer throw \|65.39 m
rowspan=2\|2018 \|South American Games \|Cochabamba, Bolivia \|4th \|Hammer throw \|66.01 m
Ibero-American Championships \|Trujillo, Peru \|6th \|Hammer throw \|65.78 m
rowspan=2\|2019 \|South American Championships \|Lima, Peru \|bgcolor=gold\|1st \|Hammer throw \|66.78 m
Pan American Games \|Lima, Peru \|4th \|Hammer throw \|66.15 m
2021 \|South American Championships \|Guayaquil, Ecuador \|bgcolor=gold\|1st \|Hammer throw \|66.16 m
rowspan=3\|2022 \|Ibero-American Championships \|La Nucía, Spain \|bgcolor=silver\|2nd \|Hammer throw \|64.51 m
World Championships \|Eugene, United States \|29th (q) \|Hammer throw \|64.72 m
South American Games \|Asunción, Paraguay \|4th \|Hammer throw \|59.79 m
rowspan=2\|2023 \|South American Championships \|São Paulo, Brazil \|8th \|Hammer throw \|59.76 m
Pan American Games \|Santiago, Chile \|9th \|Hammer throw \|58.32 m
2024 \|Ibero-American Championships \|Cuiabá, Brazil \|6th \|Hammer throw \|61.62 m

colspan="6"|Representing {{BRA}}

rowspan=2|2008

|rowspan=2|South American Youth Championships

|rowspan=2|Lima, Peru

|bgcolor=silver|2nd

|Shot put

|13.45 m

bgcolor=silver|2nd

|Hammer throw

|47.80 m

2009

|World Youth Championships