Sergey Zaikov

{{Short description|Kazakhstani sprinter (born 1987)}}

{{Infobox sportsperson

| image=

| image_size=

| caption=

| birth_date= {{birth date and age|1987|9|23}}

| birth_place= Pavlodar, Soviet Union

| height={{height|m=1.90}}

| weight={{cvt|76|kg}}

| country={{KAZ}}

| sport =Athletics

| event=400m

| coach=Viktor Kolyev

| medaltemplates =

{{MedalSport|Men's athletics}}

{{MedalCountry|{{KAZ}}}}

{{MedalCompetition|Asian Indoor Championships}}

{{MedalGold|2014 Hangzhou|4×400 m}}

{{MedalSilver|2014 Hangzhou|400 m}}

{{MedalSilver|2018 Tehran|4×400 m}}

}}

Sergey Zaikov (Russian:Сергей Зайков; born 23 September 1987 in Pavlodar) is a Kazakhstani runner.[https://web.archive.org/web/20200418053559/https://www.sports-reference.com/olympics/athletes/za/sergey-zaykov-1.html Sergey Zaikov]. Sports Reference. Retrieved on 2014-02-17. He competed at the 2012 Summer Olympics in the 400 m event, in which he was defeated after the first round.[https://web.archive.org/web/20130512055444/http://www.london2012.com/athlete/zaikov-sergej-1137087/ Sergej Zaikov]. London 2012 (archived). Retrieved on 2014-02-17.