Italy has competed at the World Athletics Relays since first edition held in 2014, Italian teams have won a bronze medal in 2019.
Italy competed at the first edition of the World Athletics Relays (at what time still known as IAAF World Relays) in Nassau, Bahamas, from 24 to 25 May 2014.
In this first edition national relay team was made up of only the women's 4 ÃÂ 400 m team, only five athletes.
Italy competed at the 2015 IAAF World Relays in Nassau, Bahamas, from 2 to 3 May 2015.
17 athletes, 6 men and 11 women, was selected for the event, for the composition of four teams: the 4 ÃÂ 100 m men and women, the 4 ÃÂ 400 m women. The 4 ÃÂ 200 m men did not start.
Italy competed at the 2017 IAAF World Relays in Nassau, Bahamas, from 22 to 23 April 2017.
11 athletes, 6 men and 5 women, was selected for the event for the composition of two teams: the 4 ÃÂ 100 m men and the 4 ÃÂ 100 m women.
Italy competed at the 2019 IAAF World Relays in Yokohama, Japan, from 11 to 19 May 2019, participating in five of the ten scheduled competitions.
29 athletes, 14 men and 15 women, was selected for the event.
On 10 May 2019 Italian Athletics Federation announced the composition of the five national teams to the five competitions in which it will participate.
Italy competed at the 2021 World Athletics Relays in Silesia, Poland, from 1 to 2 May 2021, participating in five of the ten scheduled competitions.
30 athletes, 16 men and 14 women, was selected for the event, but there were two forfais.
In the heats all five teams qualified for the final, the three who did not yet have the Olympic pass (Men's 4 ÃÂ 100 m, Woman 4 ÃÂ 400 m and Mixed 4 ÃÂ 400 m), got it.