Alastair William "Aly" Muldowney (born 3 August 1983) is an English-born professional rugby union player.

[4] Muldowney played a total of 20 Celtic League games for the side, scoring tries against Newport Gwent Dragons and Benetton Treviso.

[7] Muldowney also played in the 2011–12 European Challenge Cup for the Chiefs, starting three games and coming on as a replacement in a further three, including the quarter-final against Stade Français, and scored a try against I Cavalieri Prato in the pool stages.

In the Heineken Cup, Muldowney played in five of the team's pool games, starting in the 30–20 win at home to Scarlets, as the Chiefs finished third and were eliminated from the competition.

[4] Muldowney was primarily used as a substitute in his first season, making 20 league appearances, 11 of them from the bench,[9] and was a replacement in both of his Heineken Cup games for the province.

Ahead of the 2014–15 campaign Connacht's captain, second row Craig Clarke, retired which meant Muldowney featured more prominently throughout the season.

Muldowney's contributions were recognised with a Connacht Player of the Month award for February 2015 and being named by the rest of the squad as the province's "Team Man of the Year.