• 2010 in rugby union by country (9 C)
• 2010 rugby union tournaments for national teams (2 C, 29 P)

/

• Rugby clubs disestablished in 2010 (4 P)
• Rugby clubs established in 2010 (1 C, 34 P)

A

• 2010 in African rugby union (1 C, 6 P)
• 2010 in Asian rugby union (3 C, 11 P)

C

• 2010 rugby union tournaments for clubs (4 C, 19 P)

E

• 2009–10 in European rugby union (6 C, 12 P)
• 2010–11 in European rugby union (6 C, 11 P)

N

• 2010 in North American rugby union (2 C, 3 P)

O

• 2010 in Oceanian rugby union (1 C, 8 P)

R

• 2010 rugby sevens competitions (3 C, 19 P)

S

• 2010 in South American rugby union (1 C, 6 P)

T

• 2010 rugby union tours (3 P)

W

• 2010 in women's rugby union (3 C, 7 P)