Irish captain Katie McCabe scored the Republic’s first World Cup goal when her superb corner flew into the net after just four minutes.
The Irish had chances to add a second against the Olympic champions, but they were undone in first-half injury time as Julia Grosso’s cross took a touch off defender Megan Connolly and nestled in the bottom corner in torrential conditions.
Adriana Leon poked Canada into the lead eight minutes into the second half and, although they pressed forward, the Republic could not find the goal they needed to keep their hopes of progressing alive.
The Republic will be playing for pride against Nigeria, who face co-hosts Australia on Thursday, in their final match in Group B.
After days of sunshine, Perth was hit by torrential rain in the lead up to the match and, knowing they needed to avoid defeat to remain in contention at their first World Cup, it was the Republic who made a stunning start.
Kyra Carusa, who was causing havoc against the Canadian defenders, forced a double save by Kailen Sheridan after being played in by Lucy Quinn.
However, there was lift off in Perth from the resulting corner when captain McCabe, who came close to scoring direct from a corner in their opener with Australia, sent a delightful, curling ball over the head of Sheridan and into the net.
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It sparked wild celebrations among the Irish support, who dominated the Rectangular Stadium, which was a sea of colour and noise.
Sheridan was forced into action again as she shovelled Sinead Farrelly’s effort wide, but Canada should have been level, only for stretching defender Vanessa Gilles to somehow poke. over from five yards from a corner.
New Chelsea recruit Ashley Lawrence lobbed over as the rain returned, but Carusa was causing all sorts of problems at the other end and she battled her way into the area and forced a solid save from Sheridan from a tight angle.
Farrelly saw a shot blocked from another McCabe corner, but there was a sucker punch right at the end of the half when Connolly got the slightest of touches on Grosso’s low delivery and Courtney Brosnan was left helpless as the ball found the bottom corner.
Despite their first-half domination, the Republic were lucky to go in level at the break as Gilles headed narrowly wide form another corner.
Written by: Debby Eselebor
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