Ivashchenko ({{lang-ua|Іва́щенко}}) is a Ukrainian surname which may refer to:

• Yuri Ivashchenko (born 1961), Ukrainian astronomer
• Valeriy Ivashchenko (born 1956), Deputy Minister of Defense of Ukraine in 2007-2009
• Elena Ivashchenko (born 1984 ), Russian judoka
• Yevgeni Ivashchenko (born 1993), Russian football player
• Oleksandr Ivashchenko (born 1985), Ukrainian football player
• Ivan Ivashchenko (born 1993), Russian football player

• Buddleja 'Argus' White
• Buddleja aromatica
• Buddleja 'Asian Moon'
• Buddleja asiatica
• Buddleja asiatica 'Sweet Promise'
• Buddleja 'Attraction'
• Buddleja auriculata
• Buddleja 'Autumn Delight'
• Buddleja 'Autumn Surprise'
• Buddleja axillaris
• Buddleja 'Beech Park'
• Buddleja 'Bel Argent'
• Buddleja bhutanica
• Buddleja 'Bicolor'
• Buddleja blattaria
• Buddleja 'Blaze Pink'
• Buddleja 'Blizzard'
• Buddleja Blueberry Cobbler
• Buddleja 'Blue Boy'
• Buddleja Blue Chip
• Buddleja 'Blue Chip'
• Buddleja 'Blue Chip Jr'
• Buddleja 'Blue Gown'
• Buddleja Blue Heaven
• Buddleja 'Blue Trerice'