|Full name||Weldon Santos de Andrade|
|Date of birth||6 August 1980|
|Place of birth||Santo André, Brazil|
|Height||1.84 m (6 ft 1⁄2 in)|
|2006||→ Sochaux (loan)||7||(1)|
|2006||→ Troyes (loan)||3||(0)|
|2007||→ Sport Recife (loan)||19||(3)|
|2007–2008||→ Belenenses (loan)||27||(13)|
|2012||→ Changchun Yatai (loan)||21||(6)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 24 May 2015.
Weldon was born in Santo André, São Paulo. In his early career, he represented four clubs in quick succession: Santos Futebol Clube, Brasiliense Futebol Clube, Sport Club do Recife and Associação Atlética Ponte Preta, before moving abroad in 2004 with Al-Nassr FC of Saudi Arabia.
In the following year Weldon signed for Cruzeiro Esporte Clube: he went on to be loaned several times for the duration of his link, including twice in the French Ligue 1, with FC Sochaux-Montbéliard and Troyes AC, where the player was rarely used – only ten games and one goal in two season halves combined.
After an aborted three-year move to Botafogo de Futebol e Regatas, Weldon completed a two-year move to S.L. Benfica of Portugal (he had already played in the country the previous year, with C.F. Os Belenenses) on 21 July 2009. On 16 August he made his official debuts for Benfica, rescuing a point at home against C.S. Marítimo for the season's opener (1–1); during the club's victorious campaign he served almost exclusively as backup to Óscar Cardozo and Javier Saviola, but made the most of his minutes, namely scoring twice in a 4–2 win at Associação Naval 1º de Maio on 5 April 2010, and another brace in another away triumph (3–2 against Académica de Coimbra).
- Campeonato Pernambucano: 2003, 2007
- CFR Cluj
- Acerto com Weldon se complica e Botafogo pode tentar Victor Simões (Deal with Weldon difficult, Botafogo can go for Victor Simões); Sidney Rezende, 7 January 2009 (Portuguese)
- Weldon in Benfica for medical tests; Planet Benfica, 22 July 2009