The 2017 World Junior Curling Championships (branded as the 2017 VoIP Defender World Junior Curling Championships for sponsorship reasons) was held from February 16 to 26 at the Gangneung Curling Centre in Gangneung, South Korea.

[1] The tournament has been designated as a test event for curling at the 2018 Winter Olympics.

[2] Men's teams[3] Final round-robin standings Thursday, February 16, 14:00 Friday, February 17, 9:00 Friday, February 17, 19:00 Saturday, February 18, 14:00 Sunday, February 19, 9:00 Sunday, February 19, 19:00 Monday, February 20, 14:00 Tuesday, February 21, 9:00 Tuesday, February 21, 19:00 Wednesday, February 22, 14:00 Thursday, February 23, 9:00 Thursday, February 23, 19:00 Friday, February 24, 9:00 Friday, February 24, 19:00 Friday, February 24, 19:00 Saturday, February 25, 9:00 Sunday, February 26, 14:00 Sunday, February 26, 14:00 Round robin only Women's teams[4] Final round-robin standings Thursday, February 16, 9:00 Thursday, February 16, 19:00 Friday, February 17, 14:00 Saturday, February 18, 9:00 Saturday, February 18, 19:00 Sunday, February 19, 14:00 Monday, February 20, 9:00 Monday, February 20, 19:00 Tuesday, February 21, 14:00 Wednesday, February 22, 9:00 Wednesday, February 22, 19:00 Thursday, February 23, 14:00 Friday, February 24, 9:00 Friday, February 24, 9:00 Friday, February 24, 14:00 Friday, February 24, 14:00 Saturday, February 25, 9:00 Saturday, February 25, 15:00 Saturday, February 25, 15:00 Round robin only