• 2000 in rugby union by country (9 C)
• 2000 rugby union tournaments for national teams (1 C, 8 P)

/

• Rugby clubs established in 2000 (19 P)

A

• 2000 in African rugby union (1 C, 1 P)
• 2000 in Asian rugby union (2 C, 5 P)

C

• 2000 rugby union tournaments for clubs (3 C, 5 P)

E

• 1999–2000 in European rugby union (6 C, 7 P)
• 2000–01 in European rugby union (6 C, 9 P)

N

• 2000 in North American rugby union (2 C, 1 P)

O

• 2000 in Oceanian rugby union (1 C, 4 P)

R

• 2000 rugby sevens competitions (2 C, 5 P)

S

• 2000 in South American rugby union (1 C, 3 P)

T

• 2000 rugby union tours (11 P)

W

• 2000 in women's rugby union (2 C, 2 P)