Neil Gourley will captain Great Britain and Northern Ireland at the World Athletics Indoor Championship in Nanjing, China.
The Scottish 1500m runner, 30, was fourth in the European Indoors last week, having come second in the 2023 event.
In February he broke the British indoor 1,000m record in Birmingham.
The Glaswegian will lead an 11-strong team in the championship from 21-23 March.
“I am taking it as a compliment and really glad they have confidence in me in that respect,” said Gourley, who finished sixth at the 2022 World Indoors.
“I hope I can bring a supportive atmosphere to the team.
“I think being a smaller team we are all invested in what each other is doing at these championships so I hope I can inspire that environment at the very least and lead by example.
“The level is so high to even be here at the Worlds, so I wouldn’t claim to have all this wisdom I can impart to my team-mates.
“But I do think there is such a great level of mutual respect across all of us in the events we do, and that respect for each other really comes through and hopefully we’ll have a great championship.”