Participants
A total of 781 rowers from the national teams of the following 54 countries was registered to compete at 2021 World Rowing U23 Championships. • (21) • (1) • (10) • (10) • (2) • (19) • (12) • (1) • (8) • (1) • (45) • (18) • (1) • (19) • (10) • (1) • (43) • (24) • (72) • (14) • (17) • (15) • (1) • (57) • (2) • (1) • (1) • (11) • (1) • (6) • (3) • (48) • (8) • (1) • (1) • (3) • (31) • (3) • (49) • (3) • (20) • (2) • (4) • (14) • (20) • (7) • (2) • (2) • (10) • (28) • (68) • (3) • (6) • (1) == See also ==